Installing the Blog

21 files changed, 3105 insertions, 0 deletions

diff --git a/talermerchantdemos/blog/static/web-common/.gitignore b/talermerchantdemos/blog/static/web-common/.gitignore
new file mode 100644
index 0000000..e64e5c1
--- /dev/null
+++ b/talermerchantdemos/blog/static/web-common/.gitignore
@@ -0,0 +1,6 @@
+Makefile
+Makefile.in
+# these should be commited pre-build to the repo, too:
+#taler-wallet-lib.js
+
+.idea
diff --git a/talermerchantdemos/blog/static/web-common/AUTHORS b/talermerchantdemos/blog/static/web-common/AUTHORS
new file mode 100644
index 0000000..7f16bf5
--- /dev/null
+++ b/talermerchantdemos/blog/static/web-common/AUTHORS
@@ -0,0 +1,2 @@
+Florian Dold
+Marcello Stanisci
diff --git a/talermerchantdemos/blog/static/web-common/Makefile.am b/talermerchantdemos/blog/static/web-common/Makefile.am
new file mode 100644
index 0000000..71c1d68
--- /dev/null
+++ b/talermerchantdemos/blog/static/web-common/Makefile.am
@@ -0,0 +1,51 @@
+# This Makefile.am is in the public domain
+EXTRA_DIST = \
+ style.css \
+ taler-wallet-lib.ts \
+ chrome-any.d.ts \
+ logo-2015-medium.png \
+ licensing.rst \
+ favicon-taler.ico \
+ dropdown-navbar.html \
+ lang.html \
+ lang.css \
+ lang.js \
+ dropdown-navbar_style.css \
+ dropdown-navbar_script.js \
+ taler-fallback.css \
+ tsconfig.json \
+ AUTHORS
+
+# Some file may be missing here...
+pkgdata_DATA = \
+  dropdown-navbar.html \
+  favicon-taler.ico \
+  logo-2015-medium.png \
+  style.css \
+  taler-wallet-lib.js
+
+all: taler-wallet-lib.min.js taler-wallet-lib.js.tar.gz taler-wallet-lib.js
+
+%.min.js: %.js
+	python3 -m jsmin $< > $@
+
+%.js.tar.gz: %.js
+	tar czf $@ $<
+
+taler-wallet-lib.js: taler-wallet-lib.ts chrome-any.d.ts
+if HAVE_TSC
+	tsc
+else
+	@echo
+	@if [ ! -f "$@" ] ; then \
+	  echo "*** Error: typescript compiler 'tsc' is missing," \
+	       "can't build" $@ ; \
+	  echo ; \
+	  exit 1 ; \
+	else \
+	   echo "*** Warning: typescript compiler 'tsc' is missing," \
+	        "using pre-build" $@ ; \
+	  touch "$@"; \
+	fi
+	@echo
+endif
diff --git a/talermerchantdemos/blog/static/web-common/Makefile_Guix b/talermerchantdemos/blog/static/web-common/Makefile_Guix
new file mode 100644
index 0000000..43dfe04
--- /dev/null
+++ b/talermerchantdemos/blog/static/web-common/Makefile_Guix
@@ -0,0 +1,5 @@
+# This Makefile is used to update the compiled JavaScripts
+# put under versioning for making Guix packaging easier
+
+all:
+	tsc taler-wallet-lib.ts
diff --git a/talermerchantdemos/blog/static/web-common/chrome-any.d.ts b/talermerchantdemos/blog/static/web-common/chrome-any.d.ts
new file mode 100644
index 0000000..b621337
--- /dev/null
+++ b/talermerchantdemos/blog/static/web-common/chrome-any.d.ts
@@ -0,0 +1,2 @@
+// We don't really need the full declaration here, so just include this.
+declare let chrome: any;
diff --git a/talermerchantdemos/blog/static/web-common/demo.css b/talermerchantdemos/blog/static/web-common/demo.css
new file mode 100644
index 0000000..b2688ad
--- /dev/null
+++ b/talermerchantdemos/blog/static/web-common/demo.css
@@ -0,0 +1,69 @@
+/* style common to all demo pages */
+
+.demobar h1 {
+  text-align: center;
+}
+.demobar > p {
+  padding: 0.5em; 
+}
+.demobar a,
+.demobar a:visited {
+  color: inherit;
+}
+.adorn-brackets::before {
+  content: "❬";
+  color: #aa3939;
+}
+.adorn-brackets::after {
+  content: "❭";
+  color: #aa3939;
+}
+.tt {
+  font-family: 'Lucida Console', Monaco, monospace;
+}
+
+.informational-ok {
+  background: lightgreen;
+  border-radius: 1em;
+  padding: 0.5em;
+}
+
+.informational-fail {
+  background: lightpink;
+  border-radius: 1em;
+  padding: 0.5em;
+}
+
+.content {
+  overflow-x: auto;
+}
+.demobar {
+  overflow-x: auto;
+  background-color: #033;
+  color: white;
+}
+
+body {
+  overflow-y: scroll;
+}
+
+@media (min-width: 500px) {
+  .content {
+    margin-left: 25%;
+    padding-left: 2em;
+    margin-right: 1em;
+    overflow-x: auto;
+  }
+  .demobar {
+    height: 100%;
+    margin: 0;
+    top: 0;
+    left: 0;
+    background-color: #033;
+    color: white;
+    position: fixed;
+    width: 25%;
+    padding-right: 1em;
+    overflow: auto;
+  }
+}
diff --git a/talermerchantdemos/blog/static/web-common/dropdown-navbar.html b/talermerchantdemos/blog/static/web-common/dropdown-navbar.html
new file mode 100644
index 0000000..7d28787
--- /dev/null
+++ b/talermerchantdemos/blog/static/web-common/dropdown-navbar.html
@@ -0,0 +1,51 @@
+<!--
+  This file is part of GNU TALER.
+  Copyright (C) 2014, 2015, 2016 INRIA
+
+  TALER is free software; you can redistribute it and/or modify it under the
+  terms of the GNU Lesser General Public License as published by the Free Software
+  Foundation; either version 2.1, or (at your option) any later version.
+
+  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+  A PARTICULAR PURPOSE.  See the GNU Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public License along with
+  TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/licenses/>
+
+  @author Marcello Stanisci
+-->
+
+<!--
+  URLs here use the special redir_app_rel path, which is rewritten by the
+  webserver to be relative to the current application mount path, no matter
+  where it occurs in the path.
+-->
+
+<div>
+ <link rel="stylesheet" type="text/css" href="redir_app_rel/static/web-common/dropdown-navbar_style.css">
+ <script src="redir_app_rel/static/web-common/dropdown-navbar_script.js" type="application/javascript"></script>
+  <div class="dropdown-navbar">
+    <ul>
+      <li>
+        <a href="https://taler.net/" class="m_index btn btn-outline-success" id="home" target="_blank">Home</a>
+      </li>
+      <li>
+        <a href="redir_app_rel/landing" class="m_demo" id="demo">Instructions</a>
+      </li>
+      <li>
+        <a href="javascript:void(0)" class="dropbtn" id="bank">Bank</a>
+        <div class="dropdown-content bank">
+          <a href="redir_app_rel/bank">Main</a>
+          <a href="redir_app_rel/bank/public-accounts">Public accounts</a>
+	</div>
+      </li>
+      <li>
+        <a href="redir_app_rel/shop" class="m_demo" id="shop">Shop</a>
+      </li>
+      <li>
+        <a href="redir_app_rel/donations" class="m_demo" id="donations">Donations</a>
+      </li>
+    </ul>
+  </div>
+</div>
diff --git a/talermerchantdemos/blog/static/web-common/dropdown-navbar_script.js b/talermerchantdemos/blog/static/web-common/dropdown-navbar_script.js
new file mode 100644
index 0000000..65f6848
--- /dev/null
+++ b/talermerchantdemos/blog/static/web-common/dropdown-navbar_script.js
@@ -0,0 +1,60 @@
+/* @licstart  The following is the entire license notice for the
+  JavaScript code in this page.
+
+  Copyright (C) 2015, 2016 INRIA
+
+  The JavaScript code in this page is free software: you can
+  redistribute it and/or modify it under the terms of the GNU
+  Lesser General Public License (GNU LGPL) as published by the Free Software
+  Foundation, either version 2.1 of the License, or (at your option)
+  any later version.  The code is distributed WITHOUT ANY WARRANTY;
+  without even the implied warranty of MERCHANTABILITY or FITNESS
+  FOR A PARTICULAR PURPOSE.  See the GNU LGPL for more details.
+
+  As additional permission under GNU LGPL version 2.1 section 7, you
+  may distribute non-source (e.g., minimized or compacted) forms of
+  that code without the copy of the GNU LGPL normally required by
+  section 4, provided you include this license notice and a URL
+  through which recipients can access the Corresponding Source.
+
+  @licend  The above is the entire license notice
+  for the JavaScript code in this page.
+
+  @author Marcello Stanisci
+*/
+window.onclick = function(e) {
+  var dropdowns = document.getElementsByClassName("dropdown-content");
+  if (!e.target.matches('.dropbtn')) {
+    for (var d = 0; d < dropdowns.length; d++) {
+      var openDropdown = dropdowns[d];
+      if (openDropdown.classList.contains('show')) {
+        openDropdown.classList.remove('show');
+      }
+    }
+  }
+  else{ // need to close other tabs belonging to tabs other than the clicked one 
+    for (var d = 0; d < dropdowns.length; d++) {
+      var openDropdown = dropdowns[d];
+      if ((openDropdown.parentNode != e.target.parentNode)
+        && (openDropdown.classList.contains("show"))){
+        openDropdown.classList.remove('show');
+      }
+    }        
+  }
+}
+/**
+ * Dropdown bar items which are supposed to.  In the current
+ * configuration, only the 'bank' item shold dropdown.
+ */
+function injectOnclicks(){
+  var where = ["bank"];
+  for (i in where){
+    document.getElementById(where[i]).onclick = function(){
+      this.parentNode.children[1].classList.toggle("show");
+      }
+  }
+}
+function dropMenu(){
+
+}
+document.addEventListener('DOMContentLoaded', injectOnclicks);
diff --git a/talermerchantdemos/blog/static/web-common/dropdown-navbar_style.css b/talermerchantdemos/blog/static/web-common/dropdown-navbar_style.css
new file mode 100644
index 0000000..139115d
--- /dev/null
+++ b/talermerchantdemos/blog/static/web-common/dropdown-navbar_style.css
@@ -0,0 +1,58 @@
+/*
+  This file is part of GNU TALER.
+  Copyright (C) 2014, 2015, 2016 INRIA
+
+  TALER is free software; you can redistribute it and/or modify it under the
+  terms of the GNU Lesser General Public License as published by the Free Software
+  Foundation; either version 2.1, or (at your option) any later version.
+
+  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+  A PARTICULAR PURPOSE.  See the GNU Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public License along with
+  TALER; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
+
+  @author Marcello Stanisci
+*/
+
+.dropdown-navbar ul {
+  border-radius: 5px;
+  overflow: hidden;
+  background-color: #F4F3F3;
+  list-style-type: none;
+  margin: 0;
+  padding: 0;
+  max-width: 40em;
+}
+.dropdown-navbar {
+  position: relative;
+  z-index: 1;
+  margin-left: 100px;
+}
+.dropdown-navbar li {
+  float: left; 
+}
+.dropdown-content {
+  border-radius: 5px;
+  border-style: solid;
+  border-color: #B3B3B3;
+  border-width: 1px;
+  background-color: #F4F3F3;
+  position: absolute;
+  display: none;
+}
+.dropdown-navbar a {
+  font-weight: bold;
+  color: black;
+  text-decoration: none;
+  padding: 6px 8px;
+  display: inline-block;
+  position: relative;
+}
+.dropdown-content a {
+  display: block;    
+}
+.show {
+  display: block;
+}
diff --git a/talermerchantdemos/blog/static/web-common/favicon-taler.ico b/talermerchantdemos/blog/static/web-common/favicon-taler.ico
new file mode 100644
index 0000000..141b93d
--- /dev/null
+++ b/talermerchantdemos/blog/static/web-common/favicon-taler.ico
diff --git a/talermerchantdemos/blog/static/web-common/lang.css b/talermerchantdemos/blog/static/web-common/lang.css
new file mode 100644
index 0000000..bae82f0
--- /dev/null
+++ b/talermerchantdemos/blog/static/web-common/lang.css
@@ -0,0 +1,29 @@
+body.it :lang(en) {
+  display: none;
+}
+
+body.en :lang(it) {
+  display: none;
+}
+
+.bottom-bar {
+  background-color: #F8F8F8;
+  border-color: #E7E7E7;
+  bottom: 0px;
+  margin-bottom: 0px;
+  border-width: 1px 0px 0px;
+  position: fixed;
+  bottom: 0px;
+  min-height: 50px;
+  width: 100%;
+}
+
+.lang-selector {
+  padding-top: 14px;
+  padding-bottom: 10px;
+  margin-left: 50px;
+}
+
+.lang-selector a {
+  text-decoration: none;
+}
diff --git a/talermerchantdemos/blog/static/web-common/lang.html b/talermerchantdemos/blog/static/web-common/lang.html
new file mode 100644
index 0000000..8db1c0d
--- /dev/null
+++ b/talermerchantdemos/blog/static/web-common/lang.html
@@ -0,0 +1,29 @@
+<div class="bottom-bar">
+  <div class="lang-selector">
+    <a href="#" onclick="setLang('en');">
+      <img>
+        <!-- https://upload.wikimedia.org/wikipedia/commons/a/ae/Flag_of_the_United_Kingdom.svg -->
+        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 60 30" width="45" height="22.5">
+        <clipPath id="t">
+        	<path d="M30,15 h30 v15 z v15 h-30 z h-30 v-15 z v-15 h30 z"/>
+        </clipPath>
+        <path d="M0,0 v30 h60 v-30 z" fill="#00247d"/>
+        <path d="M0,0 L60,30 M60,0 L0,30" stroke="#fff" stroke-width="6"/>
+        <path d="M0,0 L60,30 M60,0 L0,30" clip-path="url(#t)" stroke="#cf142b" stroke-width="4"/>
+        <path d="M30,0 v30 M0,15 h60" stroke="#fff" stroke-width="10"/>
+        <path d="M30,0 v30 M0,15 h60" stroke="#cf142b" stroke-width="6"/>
+        </svg>
+      </img>
+    </a>
+    <a href="#" onclick="setLang('it');">
+      <img>
+	<!-- https://upload.wikimedia.org/wikipedia/en/0/03/Flag_of_Italy.svg -->
+        <svg xmlns="http://www.w3.org/2000/svg" width="45" height="22.5" viewBox="0 0 3 2">
+        <rect width="1" height="2" fill="#009246"/>
+        <rect width="1" height="2" x="1" fill="#fff"/>
+        <rect width="1" height="2" x="2" fill="#ce2b37"/>
+        </svg>
+      </img>
+    </a>
+  </div>
+</div>
diff --git a/talermerchantdemos/blog/static/web-common/lang.js b/talermerchantdemos/blog/static/web-common/lang.js
new file mode 100644
index 0000000..356a152
--- /dev/null
+++ b/talermerchantdemos/blog/static/web-common/lang.js
@@ -0,0 +1,69 @@
+/**
+ * @licstart  The following is the entire license notice for the
+ *  JavaScript code in this page.
+ *
+ * Copyright (C) 2014 GNUnet e.V.
+ *
+ * The JavaScript code in this page is free software: you can
+ * redistribute it and/or modify it under the terms of the GNU
+ * General Public License (GNU GPL) as published by the Free Software
+ * Foundation, either version 3 of the License, or (at your option)
+ * any later version.  The code is distributed WITHOUT ANY WARRANTY;
+ * without even the implied warranty of MERCHANTABILITY or FITNESS
+ * FOR A PARTICULAR PURPOSE.  See the GNU GPL for more details.
+ *
+ * As additional permission under GNU GPL version 3 section 7, you
+ * may distribute non-source (e.g., minimized or compacted) forms of
+ * that code without the copy of the GNU GPL normally required by
+ * section 4, provided you include this license notice and a URL
+ * through which recipients can access the Corresponding Source.
+ *
+ * @licend  The above is the entire license notice
+ * for the JavaScript code in this page.
+ */
+
+// @license magnet:?xt=urn:btih:1f739d935676111cfff4b4693e3816e664797050&dn=gpl-3.0.txt GPL-v3-or-Later
+
+function supports_html5_storage() {
+  try {
+    return 'sessionStorage' in window && window['sessionStorage'] !== null;
+  }
+  catch (e) {
+    return false;
+  }
+}
+
+function setLang(l)
+{
+  document.body.className=l;
+  if (supports_html5_storage()) {
+    sessionStorage.setItem('lang', l);
+  }
+  if (l == 'en') document.title = 'GNU Taler - Merchant demonstrator';
+  if (l == 'it') document.title = 'GNU Taler - Dimostrazione d\'acquisto';
+}
+
+function get_default_lang()
+{
+  langs = ['en', 'it'];
+  for (var i in navigator.languages) {
+    for (var j in langs) {
+      if (navigator.languages[i].indexOf(langs[j]) != -1)
+        return langs[j];
+    }
+  }
+  return 'en';
+}
+
+/*To be called on each onLoad*/
+function loadLang()
+{
+  l = null;
+  if (supports_html5_storage()) {
+    l = sessionStorage.getItem('lang');
+  }
+  if (!l)
+    l = get_default_lang();
+  setLang(l);
+}
+// @license-end
diff --git a/talermerchantdemos/blog/static/web-common/licensing.rst b/talermerchantdemos/blog/static/web-common/licensing.rst
new file mode 100644
index 0000000..05c13b9
--- /dev/null
+++ b/talermerchantdemos/blog/static/web-common/licensing.rst
@@ -0,0 +1,2 @@
+The copyright of all the HTML/CSS/JavaScript files in this directory
+is owned by INRIA.
diff --git a/talermerchantdemos/blog/static/web-common/logo-2015-medium.png b/talermerchantdemos/blog/static/web-common/logo-2015-medium.png
new file mode 100644
index 0000000..78159bb
--- /dev/null
+++ b/talermerchantdemos/blog/static/web-common/logo-2015-medium.png
diff --git a/talermerchantdemos/blog/static/web-common/pure.css b/talermerchantdemos/blog/static/web-common/pure.css
new file mode 100644
index 0000000..7391139
--- /dev/null
+++ b/talermerchantdemos/blog/static/web-common/pure.css
@@ -0,0 +1,1508 @@
+/*!
+Pure v0.6.2
+Copyright 2013 Yahoo!
+Licensed under the BSD License.
+https://github.com/yahoo/pure/blob/master/LICENSE.md
+*/
+/*!
+normalize.css v^3.0 | MIT License | git.io/normalize
+Copyright (c) Nicolas Gallagher and Jonathan Neal
+*/
+/*! normalize.css v3.0.3 | MIT License | github.com/necolas/normalize.css */
+
+/**
+ * 1. Set default font family to sans-serif.
+ * 2. Prevent iOS and IE text size adjust after device orientation change,
+ *    without disabling user zoom.
+ */
+
+html {
+  font-family: sans-serif; /* 1 */
+  -ms-text-size-adjust: 100%; /* 2 */
+  -webkit-text-size-adjust: 100%; /* 2 */
+}
+
+/**
+ * Remove default margin.
+ */
+
+body {
+  margin: 0;
+}
+
+/* HTML5 display definitions
+   ========================================================================== */
+
+/**
+ * Correct `block` display not defined for any HTML5 element in IE 8/9.
+ * Correct `block` display not defined for `details` or `summary` in IE 10/11
+ * and Firefox.
+ * Correct `block` display not defined for `main` in IE 11.
+ */
+
+article,
+aside,
+details,
+figcaption,
+figure,
+footer,
+header,
+hgroup,
+main,
+menu,
+nav,
+section,
+summary {
+  display: block;
+}
+
+/**
+ * 1. Correct `inline-block` display not defined in IE 8/9.
+ * 2. Normalize vertical alignment of `progress` in Chrome, Firefox, and Opera.
+ */
+
+audio,
+canvas,
+progress,
+video {
+  display: inline-block; /* 1 */
+  vertical-align: baseline; /* 2 */
+}
+
+/**
+ * Prevent modern browsers from displaying `audio` without controls.
+ * Remove excess height in iOS 5 devices.
+ */
+
+audio:not([controls]) {
+  display: none;
+  height: 0;
+}
+
+/**
+ * Address `[hidden]` styling not present in IE 8/9/10.
+ * Hide the `template` element in IE 8/9/10/11, Safari, and Firefox < 22.
+ */
+
+[hidden],
+template {
+  display: none;
+}
+
+/* Links
+   ========================================================================== */
+
+/**
+ * Remove the gray background color from active links in IE 10.
+ */
+
+a {
+  background-color: transparent;
+}
+
+/**
+ * Improve readability of focused elements when they are also in an
+ * active/hover state.
+ */
+
+a:active,
+a:hover {
+  outline: 0;
+}
+
+/* Text-level semantics
+   ========================================================================== */
+
+/**
+ * Address styling not present in IE 8/9/10/11, Safari, and Chrome.
+ */
+
+abbr[title] {
+  border-bottom: 1px dotted;
+}
+
+/**
+ * Address style set to `bolder` in Firefox 4+, Safari, and Chrome.
+ */
+
+b,
+strong {
+  font-weight: bold;
+}
+
+/**
+ * Address styling not present in Safari and Chrome.
+ */
+
+dfn {
+  font-style: italic;
+}
+
+/**
+ * Address variable `h1` font-size and margin within `section` and `article`
+ * contexts in Firefox 4+, Safari, and Chrome.
+ */
+
+h1 {
+  font-size: 2em;
+  margin: 0.67em 0;
+}
+
+/**
+ * Address styling not present in IE 8/9.
+ */
+
+mark {
+  background: #ff0;
+  color: #000;
+}
+
+/**
+ * Address inconsistent and variable font size in all browsers.
+ */
+
+small {
+  font-size: 80%;
+}
+
+/**
+ * Prevent `sub` and `sup` affecting `line-height` in all browsers.
+ */
+
+sub,
+sup {
+  font-size: 75%;
+  line-height: 0;
+  position: relative;
+  vertical-align: baseline;
+}
+
+sup {
+  top: -0.5em;
+}
+
+sub {
+  bottom: -0.25em;
+}
+
+/* Embedded content
+   ========================================================================== */
+
+/**
+ * Remove border when inside `a` element in IE 8/9/10.
+ */
+
+img {
+  border: 0;
+}
+
+/**
+ * Correct overflow not hidden in IE 9/10/11.
+ */
+
+svg:not(:root) {
+  overflow: hidden;
+}
+
+/* Grouping content
+   ========================================================================== */
+
+/**
+ * Address margin not present in IE 8/9 and Safari.
+ */
+
+figure {
+  margin: 1em 40px;
+}
+
+/**
+ * Address differences between Firefox and other browsers.
+ */
+
+hr {
+  box-sizing: content-box;
+  height: 0;
+}
+
+/**
+ * Contain overflow in all browsers.
+ */
+
+pre {
+  overflow: auto;
+}
+
+/**
+ * Address odd `em`-unit font size rendering in all browsers.
+ */
+
+code,
+kbd,
+pre,
+samp {
+  font-family: monospace, monospace;
+  font-size: 1em;
+}
+
+/* Forms
+   ========================================================================== */
+
+/**
+ * Known limitation: by default, Chrome and Safari on OS X allow very limited
+ * styling of `select`, unless a `border` property is set.
+ */
+
+/**
+ * 1. Correct color not being inherited.
+ *    Known issue: affects color of disabled elements.
+ * 2. Correct font properties not being inherited.
+ * 3. Address margins set differently in Firefox 4+, Safari, and Chrome.
+ */
+
+button,
+input,
+optgroup,
+select,
+textarea {
+  color: inherit; /* 1 */
+  font: inherit; /* 2 */
+  margin: 0; /* 3 */
+}
+
+/**
+ * Address `overflow` set to `hidden` in IE 8/9/10/11.
+ */
+
+button {
+  overflow: visible;
+}
+
+/**
+ * Address inconsistent `text-transform` inheritance for `button` and `select`.
+ * All other form control elements do not inherit `text-transform` values.
+ * Correct `button` style inheritance in Firefox, IE 8/9/10/11, and Opera.
+ * Correct `select` style inheritance in Firefox.
+ */
+
+button,
+select {
+  text-transform: none;
+}
+
+/**
+ * 1. Avoid the WebKit bug in Android 4.0.* where (2) destroys native `audio`
+ *    and `video` controls.
+ * 2. Correct inability to style clickable `input` types in iOS.
+ * 3. Improve usability and consistency of cursor style between image-type
+ *    `input` and others.
+ */
+
+button,
+html input[type="button"], /* 1 */
+input[type="reset"],
+input[type="submit"] {
+  -webkit-appearance: button; /* 2 */
+  cursor: pointer; /* 3 */
+}
+
+/**
+ * Re-set default cursor for disabled elements.
+ */
+
+button[disabled],
+html input[disabled] {
+  cursor: default;
+}
+
+/**
+ * Remove inner padding and border in Firefox 4+.
+ */
+
+button::-moz-focus-inner,
+input::-moz-focus-inner {
+  border: 0;
+  padding: 0;
+}
+
+/**
+ * Address Firefox 4+ setting `line-height` on `input` using `!important` in
+ * the UA stylesheet.
+ */
+
+input {
+  line-height: normal;
+}
+
+/**
+ * It's recommended that you don't attempt to style these elements.
+ * Firefox's implementation doesn't respect box-sizing, padding, or width.
+ *
+ * 1. Address box sizing set to `content-box` in IE 8/9/10.
+ * 2. Remove excess padding in IE 8/9/10.
+ */
+
+input[type="checkbox"],
+input[type="radio"] {
+  box-sizing: border-box; /* 1 */
+  padding: 0; /* 2 */
+}
+
+/**
+ * Fix the cursor style for Chrome's increment/decrement buttons. For certain
+ * `font-size` values of the `input`, it causes the cursor style of the
+ * decrement button to change from `default` to `text`.
+ */
+
+input[type="number"]::-webkit-inner-spin-button,
+input[type="number"]::-webkit-outer-spin-button {
+  height: auto;
+}
+
+/**
+ * 1. Address `appearance` set to `searchfield` in Safari and Chrome.
+ * 2. Address `box-sizing` set to `border-box` in Safari and Chrome.
+ */
+
+input[type="search"] {
+  -webkit-appearance: textfield; /* 1 */
+  box-sizing: content-box; /* 2 */
+}
+
+/**
+ * Remove inner padding and search cancel button in Safari and Chrome on OS X.
+ * Safari (but not Chrome) clips the cancel button when the search input has
+ * padding (and `textfield` appearance).
+ */
+
+input[type="search"]::-webkit-search-cancel-button,
+input[type="search"]::-webkit-search-decoration {
+  -webkit-appearance: none;
+}
+
+/**
+ * Define consistent border, margin, and padding.
+ */
+
+fieldset {
+  border: 1px solid #c0c0c0;
+  margin: 0 2px;
+  padding: 0.35em 0.625em 0.75em;
+}
+
+/**
+ * 1. Correct `color` not being inherited in IE 8/9/10/11.
+ * 2. Remove padding so people aren't caught out if they zero out fieldsets.
+ */
+
+legend {
+  border: 0; /* 1 */
+  padding: 0; /* 2 */
+}
+
+/**
+ * Remove default vertical scrollbar in IE 8/9/10/11.
+ */
+
+textarea {
+  overflow: auto;
+}
+
+/**
+ * Don't inherit the `font-weight` (applied by a rule above).
+ * NOTE: the default cannot safely be changed in Chrome and Safari on OS X.
+ */
+
+optgroup {
+  font-weight: bold;
+}
+
+/* Tables
+   ========================================================================== */
+
+/**
+ * Remove most spacing between table cells.
+ */
+
+table {
+  border-collapse: collapse;
+  border-spacing: 0;
+}
+
+td,
+th {
+  padding: 0;
+}
+
+/*csslint important:false*/
+
+/* ==========================================================================
+   Pure Base Extras
+   ========================================================================== */
+
+/**
+ * Extra rules that Pure adds on top of Normalize.css
+ */
+
+/**
+ * Always hide an element when it has the `hidden` HTML attribute.
+ */
+
+.hidden,
+[hidden] {
+    display: none !important;
+}
+
+/**
+ * Add this class to an image to make it fit within it's fluid parent wrapper while maintaining
+ * aspect ratio.
+ */
+.pure-img {
+    max-width: 100%;
+    height: auto;
+    display: block;
+}
+
+/*csslint regex-selectors:false, known-properties:false, duplicate-properties:false*/
+
+.pure-g {
+    letter-spacing: -0.31em; /* Webkit: collapse white-space between units */
+    *letter-spacing: normal; /* reset IE < 8 */
+    *word-spacing: -0.43em; /* IE < 8: collapse white-space between units */
+    text-rendering: optimizespeed; /* Webkit: fixes text-rendering: optimizeLegibility */
+
+    /*
+    Sets the font stack to fonts known to work properly with the above letter
+    and word spacings. See: https://github.com/yahoo/pure/issues/41/
+
+    The following font stack makes Pure Grids work on all known environments.
+
+    * FreeSans: Ships with many Linux distros, including Ubuntu
+
+    * Arimo: Ships with Chrome OS. Arimo has to be defined before Helvetica and
+      Arial to get picked up by the browser, even though neither is available
+      in Chrome OS.
+
+    * Droid Sans: Ships with all versions of Android.
+
+    * Helvetica, Arial, sans-serif: Common font stack on OS X and Windows.
+    */
+    font-family: FreeSans, Arimo, "Droid Sans", Helvetica, Arial, sans-serif;
+
+    /* Use flexbox when possible to avoid `letter-spacing` side-effects. */
+    display: -webkit-box;
+    display: -webkit-flex;
+    display: -ms-flexbox;
+    display: flex;
+    -webkit-flex-flow: row wrap;
+        -ms-flex-flow: row wrap;
+            flex-flow: row wrap;
+
+    /* Prevents distributing space between rows */
+    -webkit-align-content: flex-start;
+        -ms-flex-line-pack: start;
+            align-content: flex-start;
+}
+
+/* IE10 display: -ms-flexbox (and display: flex in IE 11) does not work inside a table; fall back to block and rely on font hack */
+@media all and (-ms-high-contrast: none), (-ms-high-contrast: active) {
+	table .pure-g {
+		display: block;
+	}
+}
+
+/* Opera as of 12 on Windows needs word-spacing.
+   The ".opera-only" selector is used to prevent actual prefocus styling
+   and is not required in markup.
+*/
+.opera-only :-o-prefocus,
+.pure-g {
+    word-spacing: -0.43em;
+}
+
+.pure-u {
+    display: inline-block;
+    *display: inline; /* IE < 8: fake inline-block */
+    zoom: 1;
+    letter-spacing: normal;
+    word-spacing: normal;
+    vertical-align: top;
+    text-rendering: auto;
+}
+
+/*
+Resets the font family back to the OS/browser's default sans-serif font,
+this the same font stack that Normalize.css sets for the `body`.
+*/
+.pure-g [class *= "pure-u"] {
+    font-family: sans-serif;
+}
+
+.pure-u-1,
+.pure-u-1-1,
+.pure-u-1-2,
+.pure-u-1-3,
+.pure-u-2-3,
+.pure-u-1-4,
+.pure-u-3-4,
+.pure-u-1-5,
+.pure-u-2-5,
+.pure-u-3-5,
+.pure-u-4-5,
+.pure-u-5-5,
+.pure-u-1-6,
+.pure-u-5-6,
+.pure-u-1-8,
+.pure-u-3-8,
+.pure-u-5-8,
+.pure-u-7-8,
+.pure-u-1-12,
+.pure-u-5-12,
+.pure-u-7-12,
+.pure-u-11-12,
+.pure-u-1-24,
+.pure-u-2-24,
+.pure-u-3-24,
+.pure-u-4-24,
+.pure-u-5-24,
+.pure-u-6-24,
+.pure-u-7-24,
+.pure-u-8-24,
+.pure-u-9-24,
+.pure-u-10-24,
+.pure-u-11-24,
+.pure-u-12-24,
+.pure-u-13-24,
+.pure-u-14-24,
+.pure-u-15-24,
+.pure-u-16-24,
+.pure-u-17-24,
+.pure-u-18-24,
+.pure-u-19-24,
+.pure-u-20-24,
+.pure-u-21-24,
+.pure-u-22-24,
+.pure-u-23-24,
+.pure-u-24-24 {
+    display: inline-block;
+    *display: inline;
+    zoom: 1;
+    letter-spacing: normal;
+    word-spacing: normal;
+    vertical-align: top;
+    text-rendering: auto;
+}
+
+.pure-u-1-24 {
+    width: 4.1667%;
+    *width: 4.1357%;
+}
+
+.pure-u-1-12,
+.pure-u-2-24 {
+    width: 8.3333%;
+    *width: 8.3023%;
+}
+
+.pure-u-1-8,
+.pure-u-3-24 {
+    width: 12.5000%;
+    *width: 12.4690%;
+}
+
+.pure-u-1-6,
+.pure-u-4-24 {
+    width: 16.6667%;
+    *width: 16.6357%;
+}
+
+.pure-u-1-5 {
+    width: 20%;
+    *width: 19.9690%;
+}
+
+.pure-u-5-24 {
+    width: 20.8333%;
+    *width: 20.8023%;
+}
+
+.pure-u-1-4,
+.pure-u-6-24 {
+    width: 25%;
+    *width: 24.9690%;
+}
+
+.pure-u-7-24 {
+    width: 29.1667%;
+    *width: 29.1357%;
+}
+
+.pure-u-1-3,
+.pure-u-8-24 {
+    width: 33.3333%;
+    *width: 33.3023%;
+}
+
+.pure-u-3-8,
+.pure-u-9-24 {
+    width: 37.5000%;
+    *width: 37.4690%;
+}
+
+.pure-u-2-5 {
+    width: 40%;
+    *width: 39.9690%;
+}
+
+.pure-u-5-12,
+.pure-u-10-24 {
+    width: 41.6667%;
+    *width: 41.6357%;
+}
+
+.pure-u-11-24 {
+    width: 45.8333%;
+    *width: 45.8023%;
+}
+
+.pure-u-1-2,
+.pure-u-12-24 {
+    width: 50%;
+    *width: 49.9690%;
+}
+
+.pure-u-13-24 {
+    width: 54.1667%;
+    *width: 54.1357%;
+}
+
+.pure-u-7-12,
+.pure-u-14-24 {
+    width: 58.3333%;
+    *width: 58.3023%;
+}
+
+.pure-u-3-5 {
+    width: 60%;
+    *width: 59.9690%;
+}
+
+.pure-u-5-8,
+.pure-u-15-24 {
+    width: 62.5000%;
+    *width: 62.4690%;
+}
+
+.pure-u-2-3,
+.pure-u-16-24 {
+    width: 66.6667%;
+    *width: 66.6357%;
+}
+
+.pure-u-17-24 {
+    width: 70.8333%;
+    *width: 70.8023%;
+}
+
+.pure-u-3-4,
+.pure-u-18-24 {
+    width: 75%;
+    *width: 74.9690%;
+}
+
+.pure-u-19-24 {
+    width: 79.1667%;
+    *width: 79.1357%;
+}
+
+.pure-u-4-5 {
+    width: 80%;
+    *width: 79.9690%;
+}
+
+.pure-u-5-6,
+.pure-u-20-24 {
+    width: 83.3333%;
+    *width: 83.3023%;
+}
+
+.pure-u-7-8,
+.pure-u-21-24 {
+    width: 87.5000%;
+    *width: 87.4690%;
+}
+
+.pure-u-11-12,
+.pure-u-22-24 {
+    width: 91.6667%;
+    *width: 91.6357%;
+}
+
+.pure-u-23-24 {
+    width: 95.8333%;
+    *width: 95.8023%;
+}
+
+.pure-u-1,
+.pure-u-1-1,
+.pure-u-5-5,
+.pure-u-24-24 {
+    width: 100%;
+}
+.pure-button {
+    /* Structure */
+    display: inline-block;
+    zoom: 1;
+    line-height: normal;
+    white-space: nowrap;
+    vertical-align: middle;
+    text-align: center;
+    cursor: pointer;
+    -webkit-user-drag: none;
+    -webkit-user-select: none;
+       -moz-user-select: none;
+        -ms-user-select: none;
+            user-select: none;
+    box-sizing: border-box;
+}
+
+/* Firefox: Get rid of the inner focus border */
+.pure-button::-moz-focus-inner {
+    padding: 0;
+    border: 0;
+}
+
+/* Inherit .pure-g styles */
+.pure-button-group {
+    letter-spacing: -0.31em; /* Webkit: collapse white-space between units */
+    *letter-spacing: normal; /* reset IE < 8 */
+    *word-spacing: -0.43em; /* IE < 8: collapse white-space between units */
+    text-rendering: optimizespeed; /* Webkit: fixes text-rendering: optimizeLegibility */
+}
+
+.opera-only :-o-prefocus,
+.pure-button-group {
+    word-spacing: -0.43em;
+}
+
+.pure-button-group .pure-button {
+    letter-spacing: normal;
+    word-spacing: normal;
+    vertical-align: top;
+    text-rendering: auto;
+}
+
+/*csslint outline-none:false*/
+
+.pure-button {
+    font-family: inherit;
+    font-size: 100%;
+    padding: 0.5em 1em;
+    color: #444; /* rgba not supported (IE 8) */
+    color: rgba(0, 0, 0, 0.80); /* rgba supported */
+    border: 1px solid #999;  /*IE 6/7/8*/
+    border: none rgba(0, 0, 0, 0);  /*IE9 + everything else*/
+    background-color: #E6E6E6;
+    text-decoration: none;
+    border-radius: 2px;
+}
+
+.pure-button-hover,
+.pure-button:hover,
+.pure-button:focus {
+    /* csslint ignore:start */
+    filter: alpha(opacity=90);
+    /* csslint ignore:end */
+    background-image: -webkit-linear-gradient(transparent, rgba(0,0,0, 0.05) 40%, rgba(0,0,0, 0.10));
+    background-image: linear-gradient(transparent, rgba(0,0,0, 0.05) 40%, rgba(0,0,0, 0.10));
+}
+.pure-button:focus {
+    outline: 0;
+}
+.pure-button-active,
+.pure-button:active {
+    box-shadow: 0 0 0 1px rgba(0,0,0, 0.15) inset, 0 0 6px rgba(0,0,0, 0.20) inset;
+    border-color: #000\9;
+}
+
+.pure-button[disabled],
+.pure-button-disabled,
+.pure-button-disabled:hover,
+.pure-button-disabled:focus,
+.pure-button-disabled:active {
+    border: none;
+    background-image: none;
+    /* csslint ignore:start */
+    filter: alpha(opacity=40);
+    /* csslint ignore:end */
+    opacity: 0.40;
+    cursor: not-allowed;
+    box-shadow: none;
+    pointer-events: none;
+}
+
+.pure-button-hidden {
+    display: none;
+}
+
+.pure-button-primary,
+.pure-button-selected,
+a.pure-button-primary,
+a.pure-button-selected {
+    background-color: rgb(0, 120, 231);
+    color: #fff;
+}
+
+/* Button Groups */
+.pure-button-group .pure-button {
+    margin: 0;
+    border-radius: 0;
+    border-right: 1px solid #111;  /* fallback color for rgba() for IE7/8 */
+    border-right: 1px solid rgba(0, 0, 0, 0.2);
+
+}
+
+.pure-button-group .pure-button:first-child {
+    border-top-left-radius: 2px;
+    border-bottom-left-radius: 2px;
+}
+.pure-button-group .pure-button:last-child {
+    border-top-right-radius: 2px;
+    border-bottom-right-radius: 2px;
+    border-right: none;
+}
+
+/*csslint box-model:false*/
+/*
+Box-model set to false because we're setting a height on select elements, which
+also have border and padding. This is done because some browsers don't render
+the padding. We explicitly set the box-model for select elements to border-box,
+so we can ignore the csslint warning.
+*/
+
+.pure-form input[type="text"],
+.pure-form input[type="password"],
+.pure-form input[type="email"],
+.pure-form input[type="url"],
+.pure-form input[type="date"],
+.pure-form input[type="month"],
+.pure-form input[type="time"],
+.pure-form input[type="datetime"],
+.pure-form input[type="datetime-local"],
+.pure-form input[type="week"],
+.pure-form input[type="number"],
+.pure-form input[type="search"],
+.pure-form input[type="tel"],
+.pure-form input[type="color"],
+.pure-form select,
+.pure-form textarea {
+    padding: 0.5em 0.6em;
+    display: inline-block;
+    border: 1px solid #ccc;
+    box-shadow: inset 0 1px 3px #ddd;
+    border-radius: 4px;
+    vertical-align: middle;
+    box-sizing: border-box;
+}
+
+/*
+Need to separate out the :not() selector from the rest of the CSS 2.1 selectors
+since IE8 won't execute CSS that contains a CSS3 selector.
+*/
+.pure-form input:not([type]) {
+    padding: 0.5em 0.6em;
+    display: inline-block;
+    border: 1px solid #ccc;
+    box-shadow: inset 0 1px 3px #ddd;
+    border-radius: 4px;
+    box-sizing: border-box;
+}
+
+
+/* Chrome (as of v.32/34 on OS X) needs additional room for color to display. */
+/* May be able to remove this tweak as color inputs become more standardized across browsers. */
+.pure-form input[type="color"] {
+    padding: 0.2em 0.5em;
+}
+
+
+.pure-form input[type="text"]:focus,
+.pure-form input[type="password"]:focus,
+.pure-form input[type="email"]:focus,
+.pure-form input[type="url"]:focus,
+.pure-form input[type="date"]:focus,
+.pure-form input[type="month"]:focus,
+.pure-form input[type="time"]:focus,
+.pure-form input[type="datetime"]:focus,
+.pure-form input[type="datetime-local"]:focus,
+.pure-form input[type="week"]:focus,
+.pure-form input[type="number"]:focus,
+.pure-form input[type="search"]:focus,
+.pure-form input[type="tel"]:focus,
+.pure-form input[type="color"]:focus,
+.pure-form select:focus,
+.pure-form textarea:focus {
+    outline: 0;
+    border-color: #129FEA;
+}
+
+/*
+Need to separate out the :not() selector from the rest of the CSS 2.1 selectors
+since IE8 won't execute CSS that contains a CSS3 selector.
+*/
+.pure-form input:not([type]):focus {
+    outline: 0;
+    border-color: #129FEA;
+}
+
+.pure-form input[type="file"]:focus,
+.pure-form input[type="radio"]:focus,
+.pure-form input[type="checkbox"]:focus {
+    outline: thin solid #129FEA;
+    outline: 1px auto #129FEA;
+}
+.pure-form .pure-checkbox,
+.pure-form .pure-radio {
+    margin: 0.5em 0;
+    display: block;
+}
+
+.pure-form input[type="text"][disabled],
+.pure-form input[type="password"][disabled],
+.pure-form input[type="email"][disabled],
+.pure-form input[type="url"][disabled],
+.pure-form input[type="date"][disabled],
+.pure-form input[type="month"][disabled],
+.pure-form input[type="time"][disabled],
+.pure-form input[type="datetime"][disabled],
+.pure-form input[type="datetime-local"][disabled],
+.pure-form input[type="week"][disabled],
+.pure-form input[type="number"][disabled],
+.pure-form input[type="search"][disabled],
+.pure-form input[type="tel"][disabled],
+.pure-form input[type="color"][disabled],
+.pure-form select[disabled],
+.pure-form textarea[disabled] {
+    cursor: not-allowed;
+    background-color: #eaeded;
+    color: #cad2d3;
+}
+
+/*
+Need to separate out the :not() selector from the rest of the CSS 2.1 selectors
+since IE8 won't execute CSS that contains a CSS3 selector.
+*/
+.pure-form input:not([type])[disabled] {
+    cursor: not-allowed;
+    background-color: #eaeded;
+    color: #cad2d3;
+}
+.pure-form input[readonly],
+.pure-form select[readonly],
+.pure-form textarea[readonly] {
+    background-color: #eee; /* menu hover bg color */
+    color: #777; /* menu text color */
+    border-color: #ccc;
+}
+
+.pure-form input:focus:invalid,
+.pure-form textarea:focus:invalid,
+.pure-form select:focus:invalid {
+    color: #b94a48;
+    border-color: #e9322d;
+}
+.pure-form input[type="file"]:focus:invalid:focus,
+.pure-form input[type="radio"]:focus:invalid:focus,
+.pure-form input[type="checkbox"]:focus:invalid:focus {
+    outline-color: #e9322d;
+}
+.pure-form select {
+    /* Normalizes the height; padding is not sufficient. */
+    height: 2.25em;
+    border: 1px solid #ccc;
+    background-color: white;
+}
+.pure-form select[multiple] {
+    height: auto;
+}
+.pure-form label {
+    margin: 0.5em 0 0.2em;
+}
+.pure-form fieldset {
+    margin: 0;
+    padding: 0.35em 0 0.75em;
+    border: 0;
+}
+.pure-form legend {
+    display: block;
+    width: 100%;
+    padding: 0.3em 0;
+    margin-bottom: 0.3em;
+    color: #333;
+    border-bottom: 1px solid #e5e5e5;
+}
+
+.pure-form-stacked input[type="text"],
+.pure-form-stacked input[type="password"],
+.pure-form-stacked input[type="email"],
+.pure-form-stacked input[type="url"],
+.pure-form-stacked input[type="date"],
+.pure-form-stacked input[type="month"],
+.pure-form-stacked input[type="time"],
+.pure-form-stacked input[type="datetime"],
+.pure-form-stacked input[type="datetime-local"],
+.pure-form-stacked input[type="week"],
+.pure-form-stacked input[type="number"],
+.pure-form-stacked input[type="search"],
+.pure-form-stacked input[type="tel"],
+.pure-form-stacked input[type="color"],
+.pure-form-stacked input[type="file"],
+.pure-form-stacked select,
+.pure-form-stacked label,
+.pure-form-stacked textarea {
+    display: block;
+    margin: 0.25em 0;
+}
+
+/*
+Need to separate out the :not() selector from the rest of the CSS 2.1 selectors
+since IE8 won't execute CSS that contains a CSS3 selector.
+*/
+.pure-form-stacked input:not([type]) {
+    display: block;
+    margin: 0.25em 0;
+}
+.pure-form-aligned input,
+.pure-form-aligned textarea,
+.pure-form-aligned select,
+/* NOTE: pure-help-inline is deprecated. Use .pure-form-message-inline instead. */
+.pure-form-aligned .pure-help-inline,
+.pure-form-message-inline {
+    display: inline-block;
+    *display: inline;
+    *zoom: 1;
+    vertical-align: middle;
+}
+.pure-form-aligned textarea {
+    vertical-align: top;
+}
+
+/* Aligned Forms */
+.pure-form-aligned .pure-control-group {
+    margin-bottom: 0.5em;
+}
+.pure-form-aligned .pure-control-group label {
+    text-align: right;
+    display: inline-block;
+    vertical-align: middle;
+    width: 10em;
+    margin: 0 1em 0 0;
+}
+.pure-form-aligned .pure-controls {
+    margin: 1.5em 0 0 11em;
+}
+
+/* Rounded Inputs */
+.pure-form input.pure-input-rounded,
+.pure-form .pure-input-rounded {
+    border-radius: 2em;
+    padding: 0.5em 1em;
+}
+
+/* Grouped Inputs */
+.pure-form .pure-group fieldset {
+    margin-bottom: 10px;
+}
+.pure-form .pure-group input,
+.pure-form .pure-group textarea {
+    display: block;
+    padding: 10px;
+    margin: 0 0 -1px;
+    border-radius: 0;
+    position: relative;
+    top: -1px;
+}
+.pure-form .pure-group input:focus,
+.pure-form .pure-group textarea:focus {
+    z-index: 3;
+}
+.pure-form .pure-group input:first-child,
+.pure-form .pure-group textarea:first-child {
+    top: 1px;
+    border-radius: 4px 4px 0 0;
+    margin: 0;
+}
+.pure-form .pure-group input:first-child:last-child,
+.pure-form .pure-group textarea:first-child:last-child {
+    top: 1px;
+    border-radius: 4px;
+    margin: 0;
+}
+.pure-form .pure-group input:last-child,
+.pure-form .pure-group textarea:last-child {
+    top: -2px;
+    border-radius: 0 0 4px 4px;
+    margin: 0;
+}
+.pure-form .pure-group button {
+    margin: 0.35em 0;
+}
+
+.pure-form .pure-input-1 {
+    width: 100%;
+}
+.pure-form .pure-input-3-4 {
+    width: 75%;
+}
+.pure-form .pure-input-2-3 {
+    width: 66%;
+}
+.pure-form .pure-input-1-2 {
+    width: 50%;
+}
+.pure-form .pure-input-1-3 {
+    width: 33%;
+}
+.pure-form .pure-input-1-4 {
+    width: 25%;
+}
+
+/* Inline help for forms */
+/* NOTE: pure-help-inline is deprecated. Use .pure-form-message-inline instead. */
+.pure-form .pure-help-inline,
+.pure-form-message-inline {
+    display: inline-block;
+    padding-left: 0.3em;
+    color: #666;
+    vertical-align: middle;
+    font-size: 0.875em;
+}
+
+/* Block help for forms */
+.pure-form-message {
+    display: block;
+    color: #666;
+    font-size: 0.875em;
+}
+
+@media only screen and (max-width : 480px) {
+    .pure-form button[type="submit"] {
+        margin: 0.7em 0 0;
+    }
+
+    .pure-form input:not([type]),
+    .pure-form input[type="text"],
+    .pure-form input[type="password"],
+    .pure-form input[type="email"],
+    .pure-form input[type="url"],
+    .pure-form input[type="date"],
+    .pure-form input[type="month"],
+    .pure-form input[type="time"],
+    .pure-form input[type="datetime"],
+    .pure-form input[type="datetime-local"],
+    .pure-form input[type="week"],
+    .pure-form input[type="number"],
+    .pure-form input[type="search"],
+    .pure-form input[type="tel"],
+    .pure-form input[type="color"],
+    .pure-form label {
+        margin-bottom: 0.3em;
+        display: block;
+    }
+
+    .pure-group input:not([type]),
+    .pure-group input[type="text"],
+    .pure-group input[type="password"],
+    .pure-group input[type="email"],
+    .pure-group input[type="url"],
+    .pure-group input[type="date"],
+    .pure-group input[type="month"],
+    .pure-group input[type="time"],
+    .pure-group input[type="datetime"],
+    .pure-group input[type="datetime-local"],
+    .pure-group input[type="week"],
+    .pure-group input[type="number"],
+    .pure-group input[type="search"],
+    .pure-group input[type="tel"],
+    .pure-group input[type="color"] {
+        margin-bottom: 0;
+    }
+
+    .pure-form-aligned .pure-control-group label {
+        margin-bottom: 0.3em;
+        text-align: left;
+        display: block;
+        width: 100%;
+    }
+
+    .pure-form-aligned .pure-controls {
+        margin: 1.5em 0 0 0;
+    }
+
+    /* NOTE: pure-help-inline is deprecated. Use .pure-form-message-inline instead. */
+    .pure-form .pure-help-inline,
+    .pure-form-message-inline,
+    .pure-form-message {
+        display: block;
+        font-size: 0.75em;
+        /* Increased bottom padding to make it group with its related input element. */
+        padding: 0.2em 0 0.8em;
+    }
+}
+
+/*csslint adjoining-classes: false, box-model:false*/
+.pure-menu {
+    box-sizing: border-box;
+}
+
+.pure-menu-fixed {
+    position: fixed;
+    left: 0;
+    top: 0;
+    z-index: 3;
+}
+
+.pure-menu-list,
+.pure-menu-item {
+    position: relative;
+}
+
+.pure-menu-list {
+    list-style: none;
+    margin: 0;
+    padding: 0;
+}
+
+.pure-menu-item {
+    padding: 0;
+    margin: 0;
+    height: 100%;
+}
+
+.pure-menu-link,
+.pure-menu-heading {
+    display: block;
+    text-decoration: none;
+    white-space: nowrap;
+}
+
+/* HORIZONTAL MENU */
+.pure-menu-horizontal {
+    width: 100%;
+    white-space: nowrap;
+}
+
+.pure-menu-horizontal .pure-menu-list {
+    display: inline-block;
+}
+
+/* Initial menus should be inline-block so that they are horizontal */
+.pure-menu-horizontal .pure-menu-item,
+.pure-menu-horizontal .pure-menu-heading,
+.pure-menu-horizontal .pure-menu-separator {
+    display: inline-block;
+    *display: inline;
+    zoom: 1;
+    vertical-align: middle;
+}
+
+/* Submenus should still be display: block; */
+.pure-menu-item .pure-menu-item {
+    display: block;
+}
+
+.pure-menu-children {
+    display: none;
+    position: absolute;
+    left: 100%;
+    top: 0;
+    margin: 0;
+    padding: 0;
+    z-index: 3;
+}
+
+.pure-menu-horizontal .pure-menu-children {
+    left: 0;
+    top: auto;
+    width: inherit;
+}
+
+.pure-menu-allow-hover:hover > .pure-menu-children,
+.pure-menu-active > .pure-menu-children {
+    display: block;
+    position: absolute;
+}
+
+/* Vertical Menus - show the dropdown arrow */
+.pure-menu-has-children > .pure-menu-link:after {
+    padding-left: 0.5em;
+    content: "\25B8";
+    font-size: small;
+}
+
+/* Horizontal Menus - show the dropdown arrow */
+.pure-menu-horizontal .pure-menu-has-children > .pure-menu-link:after {
+    content: "\25BE";
+}
+
+/* scrollable menus */
+.pure-menu-scrollable {
+    overflow-y: scroll;
+    overflow-x: hidden;
+}
+
+.pure-menu-scrollable .pure-menu-list {
+    display: block;
+}
+
+.pure-menu-horizontal.pure-menu-scrollable .pure-menu-list {
+    display: inline-block;
+}
+
+.pure-menu-horizontal.pure-menu-scrollable {
+    white-space: nowrap;
+    overflow-y: hidden;
+    overflow-x: auto;
+    -ms-overflow-style: none;
+    -webkit-overflow-scrolling: touch;
+    /* a little extra padding for this style to allow for scrollbars */
+    padding: .5em 0;
+}
+
+.pure-menu-horizontal.pure-menu-scrollable::-webkit-scrollbar {
+    display: none;
+}
+
+/* misc default styling */
+
+.pure-menu-separator,
+.pure-menu-horizontal .pure-menu-children .pure-menu-separator {
+    background-color: #ccc;
+    height: 1px;
+    margin: .3em 0;
+}
+
+.pure-menu-horizontal .pure-menu-separator {
+    width: 1px;
+    height: 1.3em;
+    margin: 0 .3em ;
+}
+
+/* Need to reset the separator since submenu is vertical */
+.pure-menu-horizontal .pure-menu-children .pure-menu-separator {
+    display: block;
+    width: auto;
+}
+
+.pure-menu-heading {
+    text-transform: uppercase;
+    color: #565d64;
+}
+
+.pure-menu-link {
+    color: #777;
+}
+
+.pure-menu-children {
+    background-color: #fff;
+}
+
+.pure-menu-link,
+.pure-menu-disabled,
+.pure-menu-heading {
+    padding: .5em 1em;
+}
+
+.pure-menu-disabled {
+    opacity: .5;
+}
+
+.pure-menu-disabled .pure-menu-link:hover {
+    background-color: transparent;
+}
+
+.pure-menu-active > .pure-menu-link,
+.pure-menu-link:hover,
+.pure-menu-link:focus {
+    background-color: #eee;
+}
+
+.pure-menu-selected .pure-menu-link,
+.pure-menu-selected .pure-menu-link:visited {
+    color: #000;
+}
+
+.pure-table {
+    /* Remove spacing between table cells (from Normalize.css) */
+    border-collapse: collapse;
+    border-spacing: 0;
+    empty-cells: show;
+    border: 1px solid #cbcbcb;
+}
+
+.pure-table caption {
+    color: #000;
+    font: italic 85%/1 arial, sans-serif;
+    padding: 1em 0;
+    text-align: center;
+}
+
+.pure-table td,
+.pure-table th {
+    border-left: 1px solid #cbcbcb;/*  inner column border */
+    border-width: 0 0 0 1px;
+    font-size: inherit;
+    margin: 0;
+    overflow: visible; /*to make ths where the title is really long work*/
+    padding: 0.5em 1em; /* cell padding */
+}
+
+/* Consider removing this next declaration block, as it causes problems when
+there's a rowspan on the first cell. Case added to the tests. issue#432 */
+.pure-table td:first-child,
+.pure-table th:first-child {
+    border-left-width: 0;
+}
+
+.pure-table thead {
+    background-color: #e0e0e0;
+    color: #000;
+    text-align: left;
+    vertical-align: bottom;
+}
+
+/*
+striping:
+   even - #fff (white)
+   odd  - #f2f2f2 (light gray)
+*/
+.pure-table td {
+    background-color: transparent;
+}
+.pure-table-odd td {
+    background-color: #f2f2f2;
+}
+
+/* nth-child selector for modern browsers */
+.pure-table-striped tr:nth-child(2n-1) td {
+    background-color: #f2f2f2;
+}
+
+/* BORDERED TABLES */
+.pure-table-bordered td {
+    border-bottom: 1px solid #cbcbcb;
+}
+.pure-table-bordered tbody > tr:last-child > td {
+    border-bottom-width: 0;
+}
+
+
+/* HORIZONTAL BORDERED TABLES */
+
+.pure-table-horizontal td,
+.pure-table-horizontal th {
+    border-width: 0 0 1px 0;
+    border-bottom: 1px solid #cbcbcb;
+}
+.pure-table-horizontal tbody > tr:last-child > td {
+    border-bottom-width: 0;
+}
diff --git a/talermerchantdemos/blog/static/web-common/style.css b/talermerchantdemos/blog/static/web-common/style.css
new file mode 100644
index 0000000..b63fdd1
--- /dev/null
+++ b/talermerchantdemos/blog/static/web-common/style.css
@@ -0,0 +1,198 @@
+/*
+  This file is part of GNU TALER.
+  Copyright (C) 2014, 2015, 2016 INRIA
+
+  TALER is free software; you can redistribute it and/or modify it under the
+  terms of the GNU Lesser General Public License as published by the Free Software
+  Foundation; either version 2.1, or (at your option) any later version.
+
+  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+  A PARTICULAR PURPOSE.  See the GNU Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public License along with
+  TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/licenses/>
+
+  @author Marcello Stanisci
+  @author Gabor Toth
+*/
+
+body {
+    background-color: white;
+    margin: 0;
+    padding: 0;
+    font-family: Verdana, sans;
+}
+
+header {
+    width: 100%;
+    height: 100px;
+    margin: 0;
+    padding: 0;
+    border-bottom: 1px solid black;
+}
+
+/* NOTE: this class is needed to differentiate h1's which need to coexist
+  with the navigation bar, and h1's which don't (like the ones in the blog's
+  articles) */
+header h1.nav {
+    font-size: 200%;
+/*  position: relative;
+    margin: 15 0 0 120px;
+    top: 50%;
+    transform: translateY(-50%);*/
+}
+
+body.article {
+    transform: translateY(-22px);
+}
+
+/* Redundant for testing reasons */
+header h1.book-title {
+    font-size: 200%;
+    transform: translateY(30px);
+    margin-left: 100px;
+}
+/*
+    margin: 15 0 0 120px;
+    position: relative;
+    top: 50%;
+    transform: translateY(-50%);
+}*/
+header #logo {
+    float: left;
+    width: 100px;
+    height: 100px;
+    padding: 0;
+    margin: 0;
+    text-align: center;
+    border-right: 1px solid black;
+}
+
+section#menu {
+    margin: 0 0 90 0;
+    padding: 5px;
+    border-right: 1px solid black;
+    height: 100%;
+    width: 90px;
+    float: left;
+}
+
+section#main {
+    margin: 0 0 0 100px;
+    padding: 20px;
+    border-left: 1px solid black;
+    height: 100%;
+    /*max-width: 40em;*/
+}
+
+div.copyright {
+    margin: 40px 1000px 0px 150px;
+    padding: 20px;
+    border-top: 1px solid black;
+    height: 100%;
+    max-width: 40em;
+    font-size: 70%;
+    text-align: center;
+}
+
+section#main h1:first-child {
+    margin-top: 0;
+}
+
+div.login-form, div.register-form {
+    border-radius: 10px;
+    background-color: #f2f2f2;
+    padding: 11px 27px 44px 27px;
+    max-width: 200px;
+}
+
+div.login-form input[type=submit],
+div.register-form input[type=submit] {
+    width-max: 30%;
+    float: right;
+    padding: 6px;
+}
+
+.selected-item {
+    border-style: solid;
+    border-width: 1px;
+}
+
+.informational {
+    border-radius: 8px;
+    padding: 8px;
+}
+
+.informational-ok {
+    background: #ccffcc;
+}
+
+.informational-fail {
+    background: #ff8566;
+}
+
+div.login-form input[type=text],
+div.login-form input[type=password],
+div.register-form input[type=text],
+div.register-form input[type=password] {
+    width: 100%;
+    padding: 12px 20px;
+    margin: 8px 0;
+    display: inline-block;
+    border: 1px solid #ccc;
+    border-radius: 4px;
+    box-sizing: border-box;
+}
+
+h1 {
+    font-size: 160%;
+}
+
+h2 {
+    font-size: 140%;
+}
+
+h3 {
+    font-size: 120%;
+}
+
+h4, h5, h6 {
+    font-size: 100%;
+}
+
+table.history {
+	margin: 30px 0px;
+	border-width: 1px;
+	border-spacing: 3px;
+	border-style: groove;
+	border-color: gray;
+	border-collapse: separate;
+	background-color: white;
+	white-space: nowrap;
+}
+table.history th {
+	border-width: 1px;
+	padding: 5px;
+	border-style: outset;
+	border-color: gray;
+	background-color: white;
+	-moz-border-radius: ;
+}
+table.history td {
+	border-width: 1px;
+	padding: 5px;
+	border-style: outset;
+	border-color: gray;
+	background-color: white;
+	-moz-border-radius: ;
+}
+div.track-results {
+        position: absolute;
+}
+
+.fade {
+        -webkit-animation: fade 0.7s;
+        animation: fade 0.7s;
+        opacity: 1;
+}
diff --git a/talermerchantdemos/blog/static/web-common/taler-fallback.css b/talermerchantdemos/blog/static/web-common/taler-fallback.css
new file mode 100644
index 0000000..e403d71
--- /dev/null
+++ b/talermerchantdemos/blog/static/web-common/taler-fallback.css
@@ -0,0 +1,15 @@
+/* Fallback stylesheet.  Should be included in the document as follows:
+ *
+ * <link rel="stylesheet"
+ *       href="taler-fallback.css"
+ *       id="taler-presence-stylesheet />
+ *
+ * When either the taler-wallet-lib is included or the wallet is presence,
+ * it will take over this stylesheet for presence detection.
+ *
+ * This fallback stylesheet makes sure that classes for presence detection
+ * are displayed correctly, even if JavaScript is disabled and the wallet
+ * is not present.
+ */
+
+.taler-installed-show { display: none; }
diff --git a/talermerchantdemos/blog/static/web-common/taler-wallet-lib.js b/talermerchantdemos/blog/static/web-common/taler-wallet-lib.js
new file mode 100644
index 0000000..2fe1c20
--- /dev/null
+++ b/talermerchantdemos/blog/static/web-common/taler-wallet-lib.js
@@ -0,0 +1,446 @@
+/*
+  @source https://www.git.taler.net/?p=web-common.git;a=blob_plain;f=taler-wallet-lib.ts;hb=HEAD
+  @license magnet:?xt=urn:btih:5de60da917303dbfad4f93fb1b985ced5a89eac2&dn=lgpl-2.1.txt LGPL v21
+
+  @licstart  The following is the entire license notice for the
+  JavaScript code in this page.
+
+  Copyright (C) 2015, 2016 INRIA
+
+  The JavaScript code in this page is free software: you can
+  redistribute it and/or modify it under the terms of the GNU
+  Lesser General Public License (GNU LGPL) as published by the Free Software
+  Foundation, either version 2.1 of the License, or (at your option)
+  any later version.  The code is distributed WITHOUT ANY WARRANTY;
+  without even the implied warranty of MERCHANTABILITY or FITNESS
+  FOR A PARTICULAR PURPOSE.  See the GNU LGPL for more details.
+
+  As additional permission under GNU LGPL version 2.1 section 7, you
+  may distribute non-source (e.g., minimized or compacted) forms of
+  that code without the copy of the GNU LGPL normally required by
+  section 4, provided you include this license notice and a URL
+  through which recipients can access the Corresponding Source.
+
+  @licend  The above is the entire license notice
+  for the JavaScript code in this page.
+
+  @author Marcello Stanisci
+  @author Florian Dold
+*/
+(function (factory) {
+    if (typeof module === "object" && typeof module.exports === "object") {
+        var v = factory(require, exports);
+        if (v !== undefined) module.exports = v;
+    }
+    else if (typeof define === "function" && define.amd) {
+        define(["require", "exports"], factory);
+    }
+})(function (require, exports) {
+    "use strict";
+    var taler;
+    (function (taler) {
+        "use strict";
+        var logVerbose = false;
+        try {
+            logVerbose = !!localStorage.getItem("taler-log-verbose");
+        }
+        catch (e) {
+        }
+        var presentHandlers = [];
+        var absentHandlers = [];
+        // Are we running as the content script of an 
+        // extension (and not just from a normal page)?
+        var runningInExtension = false;
+        var callSeqId = 1;
+        var installed = false;
+        var probeExecuted = false;
+        var pageLoaded = false;
+        var errorHandler = undefined;
+        var sheet;
+        function onError(handler) {
+            if (errorHandler) {
+                console.warn("Overriding error handler");
+            }
+            errorHandler = handler;
+        }
+        taler.onError = onError;
+        /**
+         * Error handler for things that go wrong in the merchant
+         * frontend browser code.
+         */
+        function raise_error(reason, detail) {
+            if (errorHandler) {
+                errorHandler(reason, detail);
+                return;
+            }
+            alert("Failure: " + reason + ".  No error handler installed.  Open the developer console for more information.");
+            console.error(reason, detail);
+            console.warn("No custom error handler set.");
+        }
+        function callWallet(funcName, args, onResult) {
+            var detail = JSON.parse(JSON.stringify(args || {}));
+            var callId = callSeqId++;
+            detail.callId = callId;
+            var onTimeout = function () {
+                console.warn("timeout for invocation of " + funcName);
+            };
+            var timeoutHandle = setTimeout(onTimeout, 1000);
+            var handler = function (evt) {
+                if (evt.detail.callId !== callId) {
+                    return;
+                }
+                if (onResult) {
+                    onResult(evt.detail);
+                }
+                clearTimeout(timeoutHandle);
+                document.removeEventListener(funcName + "-result", handler);
+            };
+            document.addEventListener(funcName + "-result", handler);
+            var evt = new CustomEvent(funcName, { detail: detail });
+            document.dispatchEvent(evt);
+        }
+        /**
+         * Confirm that a reserve was created.
+         *
+         * Used by tightly integrated bank portals.
+         */
+        function confirmReserve(reservePub) {
+            if (!installed) {
+                logVerbose && console.log("delaying confirmReserve");
+                taler.onPresent(function () {
+                    confirmReserve(reservePub);
+                });
+                return;
+            }
+            callWallet("taler-confirm-reserve", { reserve_pub: reservePub });
+        }
+        taler.confirmReserve = confirmReserve;
+        function createReserve(callbackUrl, amount, wtTypes, suggestedExchangeUrl) {
+            if (!installed) {
+                logVerbose && console.log("delaying createReserve");
+                taler.onPresent(function () {
+                    createReserve(callbackUrl, amount, wtTypes, suggestedExchangeUrl);
+                });
+                return;
+            }
+            var args = {
+                callback_url: callbackUrl,
+                amount: amount,
+                wt_types: wtTypes,
+                suggested_exchange_url: suggestedExchangeUrl
+            };
+            callWallet("taler-create-reserve", args);
+        }
+        taler.createReserve = createReserve;
+        function handlePaymentResponse(walletResp) {
+            /**
+             * Handle a failed payment.
+             *
+             * Try to notify the wallet first, before we show a potentially
+             * synchronous error message (such as an alert) or leave the page.
+             */
+            function handleFailedPayment(r) {
+                var timeoutHandle = null;
+                function err() {
+                    raise_error("pay-failed", { status: r.status, response: r.responseText });
+                }
+                function onResp() {
+                    if (timeoutHandle != null) {
+                        clearTimeout(timeoutHandle);
+                        timeoutHandle = null;
+                    }
+                    err();
+                }
+                function onTimeout() {
+                    timeoutHandle = null;
+                    err();
+                }
+                callWallet("taler-payment-failed", { H_contract: walletResp.H_contract }, onResp);
+                timeoutHandle = setTimeout(onTimeout, 200);
+            }
+            logVerbose && console.log("handling taler-notify-payment: ", walletResp);
+            // Payment timeout in ms.
+            var timeout_ms = 1000;
+            // Current request.
+            var r;
+            var timeoutHandle = null;
+            function sendPay() {
+                r = new XMLHttpRequest();
+                r.open("post", walletResp.contract.pay_url);
+                r.setRequestHeader("Content-Type", "application/json;charset=UTF-8");
+                r.send(JSON.stringify(walletResp.payReq));
+                r.onload = function () {
+                    if (!r) {
+                        return;
+                    }
+                    switch (r.status) {
+                        case 200:
+                            var merchantResp = JSON.parse(r.responseText);
+                            logVerbose && console.log("got success from pay_url");
+                            callWallet("taler-payment-succeeded", { H_contract: walletResp.H_contract, merchantSig: merchantResp.sig }, function () {
+                                var nextUrl = walletResp.contract.fulfillment_url;
+                                logVerbose && console.log("taler-payment-succeeded done, going to", nextUrl);
+                                window.location.href = nextUrl;
+                                window.location.reload(true);
+                            });
+                            break;
+                        default:
+                            handleFailedPayment(r);
+                            break;
+                    }
+                    r = null;
+                    if (timeoutHandle != null) {
+                        clearTimeout(timeoutHandle);
+                        timeoutHandle = null;
+                    }
+                };
+                function retry() {
+                    if (r) {
+                        r.abort();
+                        r = null;
+                    }
+                    timeout_ms = Math.min(timeout_ms * 2, 10 * 1000);
+                    logVerbose && console.log("sendPay timed out, retrying in ", timeout_ms, "ms");
+                    sendPay();
+                }
+                timeoutHandle = setTimeout(retry, timeout_ms);
+            }
+            sendPay();
+        }
+        function onPresent(f) {
+            presentHandlers.push(f);
+        }
+        taler.onPresent = onPresent;
+        function onAbsent(f) {
+            absentHandlers.push(f);
+        }
+        taler.onAbsent = onAbsent;
+        function internalPay(p) {
+            // either the callback gets called,
+            // or the wallet will redirect the browser
+            callWallet("taler-pay", p, handlePaymentResponse);
+        }
+        taler.internalPay = internalPay;
+        function pay(p) {
+            if (!installed) {
+                logVerbose && console.log("delaying call to 'pay' until GNU Taler wallet is present");
+                taler.onPresent(function () {
+                    pay(p);
+                });
+                return;
+            }
+            internalPay(p);
+        }
+        taler.pay = pay;
+        function internalAddAuditor(d) {
+            // either the callback gets called,
+            // or the wallet will redirect the browser
+            callWallet("taler-add-auditor", d);
+        }
+        taler.internalAddAuditor = internalAddAuditor;
+        function addAuditor(d) {
+            if (!installed) {
+                logVerbose && console.log("delaying call to 'addAuditor' until GNU Taler wallet is present");
+                taler.onPresent(function () {
+                    addAuditor(d);
+                });
+                return;
+            }
+            internalAddAuditor(d);
+        }
+        taler.addAuditor = addAuditor;
+        function internalCheckAuditor(url) {
+            return new Promise(function (resolve, reject) {
+                callWallet("taler-check-auditor", url, function (x) { return resolve(x); });
+            });
+        }
+        taler.internalCheckAuditor = internalCheckAuditor;
+        /**
+         * Check if an auditor is already added to the wallet.
+         *
+         * Same-origin restrictions apply.
+         */
+        function checkAuditor(url) {
+            if (!installed) {
+                logVerbose && console.log("delaying call to 'checkAuditor' until GNU Taler wallet is present");
+                return new Promise(function (resolve, reject) {
+                    taler.onPresent(function () {
+                        resolve(checkAuditor(url));
+                    });
+                });
+            }
+            return internalCheckAuditor(url);
+        }
+        taler.checkAuditor = checkAuditor;
+        function initTaler() {
+            function handleUninstall() {
+                installed = false;
+                // not really true, but we want "uninstalled" to be shown
+                firstTimeoutCalled = true;
+                announce();
+            }
+            function handleProbe() {
+                probeExecuted = true;
+                if (!installed) {
+                    logVerbose && console.log("taler install detected");
+                    installed = true;
+                    announce();
+                }
+            }
+            function probeTaler() {
+                probeExecuted = false;
+                var eve = new Event("taler-probe");
+                document.dispatchEvent(eve);
+            }
+            var firstTimeoutCalled = false;
+            function onProbeTimeout() {
+                if (!probeExecuted) {
+                    if (installed || !firstTimeoutCalled) {
+                        installed = false;
+                        firstTimeoutCalled = true;
+                        logVerbose && console.log("taler uninstall detected");
+                        announce();
+                    }
+                }
+                // try again, maybe it'll be installed ...
+                probeTaler();
+            }
+            /**
+             * Announce presence/absence and update stylesheets.
+             *
+             * Only called after document.readyState is at least "interactive".
+             */
+            function announce() {
+                if (!pageLoaded) {
+                    logVerbose && console.log("page not loaded yet, announcing later");
+                    return;
+                }
+                setStyles();
+                if (installed) {
+                    logVerbose && console.log("announcing installed");
+                    for (var i = 0; i < presentHandlers.length; i++) {
+                        presentHandlers[i]();
+                    }
+                }
+                else {
+                    if (firstTimeoutCalled) {
+                        logVerbose && console.log("announcing uninstalled");
+                        for (var i = 0; i < absentHandlers.length; i++) {
+                            absentHandlers[i]();
+                        }
+                    }
+                    else {
+                        logVerbose && console.log("announcing nothing");
+                    }
+                }
+            }
+            function setStyles() {
+                if (!sheet || !sheet.cssRules) {
+                    return;
+                }
+                while (sheet.cssRules.length > 0) {
+                    sheet.deleteRule(0);
+                }
+                if (installed) {
+                    sheet.insertRule(".taler-installed-hide { display: none; }", 0);
+                    sheet.insertRule(".taler-probed-hide { display: none; }", 0);
+                }
+                else {
+                    sheet.insertRule(".taler-installed-show { display: none; }", 0);
+                    if (firstTimeoutCalled) {
+                        sheet.insertRule(".taler-probed-hide { display: none; }", 0);
+                    }
+                    else {
+                        // We're still doing the detection
+                        sheet.insertRule(".taler-installed-hide { display: none; }", 0);
+                    }
+                }
+            }
+            function initStyle() {
+                logVerbose && console.log("taking over styles");
+                var name = "taler-presence-stylesheet";
+                var content = "/* Taler stylesheet controlled by JS */";
+                var style = document.getElementById(name);
+                if (!style) {
+                    style = document.createElement("style");
+                    // Needed by WebKit
+                    style.appendChild(document.createTextNode(content));
+                    style.id = name;
+                    document.head.appendChild(style);
+                    sheet = style.sheet;
+                }
+                else {
+                    // We've taken over the stylesheet now,
+                    // make it clear by clearing all the rules in it
+                    // and making it obvious in the DOM.
+                    if (style.tagName.toLowerCase() === "style") {
+                        style.innerText = content;
+                    }
+                    if (!style.sheet) {
+                        throw Error("taler-presence-stylesheet should be a style sheet (<link> or <style>)");
+                    }
+                    sheet = style.sheet;
+                    while (sheet.cssRules.length > 0) {
+                        sheet.deleteRule(0);
+                    }
+                }
+            }
+            function onPageLoad() {
+                pageLoaded = true;
+                if (document.readyState == "complete") {
+                    initStyle();
+                }
+                else {
+                    var listener = function () {
+                        initStyle();
+                        setStyles();
+                    };
+                    window.addEventListener("load", listener);
+                }
+                // We only start the timeout after the page is interactive.
+                window.setInterval(onProbeTimeout, 300);
+                announce();
+            }
+            probeTaler();
+            document.addEventListener("taler-probe-result", handleProbe, false);
+            document.addEventListener("taler-uninstall", handleUninstall, false);
+            // Handle the case where the JavaScript is loaded after the page
+            // has been loaded for the first time.
+            if (document.readyState == "loading") {
+                document.addEventListener("DOMContentLoaded", onPageLoad, false);
+            }
+            else {
+                onPageLoad();
+            }
+        }
+        function onPageLoadInExtension() {
+            if (document.documentElement.getAttribute("data-taler-nojs")) {
+                logVerbose && console.log("doing taler initialization from extension (nojs)");
+                initTaler();
+            }
+        }
+        var caught = false;
+        try {
+            chrome.runtime.sendMessage({ type: "ping" });
+        }
+        catch (e) {
+            caught = true;
+        }
+        if (caught) {
+            logVerbose && console.log("running taler-wallet-lib from page");
+            initTaler();
+        }
+        else {
+            logVerbose && console.log("running taler-wallet-lib from extension");
+            runningInExtension = true;
+            // Wait for even style sheets to load
+            if (document.readyState != "complete") {
+                window.addEventListener("load", function () { return onPageLoadInExtension(); });
+            }
+            else {
+                onPageLoadInExtension();
+            }
+        }
+    })(taler = exports.taler || (exports.taler = {}));
+});
+// @license-end
diff --git a/talermerchantdemos/blog/static/web-common/taler-wallet-lib.ts b/talermerchantdemos/blog/static/web-common/taler-wallet-lib.ts
new file mode 100644
index 0000000..cbf32e8
--- /dev/null
+++ b/talermerchantdemos/blog/static/web-common/taler-wallet-lib.ts
@@ -0,0 +1,488 @@
+/*
+  @source https://www.git.taler.net/?p=web-common.git;a=blob_plain;f=taler-wallet-lib.ts;hb=HEAD
+  @license magnet:?xt=urn:btih:5de60da917303dbfad4f93fb1b985ced5a89eac2&dn=lgpl-2.1.txt LGPL v21
+
+  @licstart  The following is the entire license notice for the
+  JavaScript code in this page.
+
+  Copyright (C) 2015, 2016 INRIA
+
+  The JavaScript code in this page is free software: you can
+  redistribute it and/or modify it under the terms of the GNU
+  Lesser General Public License (GNU LGPL) as published by the Free Software
+  Foundation, either version 2.1 of the License, or (at your option)
+  any later version.  The code is distributed WITHOUT ANY WARRANTY;
+  without even the implied warranty of MERCHANTABILITY or FITNESS
+  FOR A PARTICULAR PURPOSE.  See the GNU LGPL for more details.
+
+  As additional permission under GNU LGPL version 2.1 section 7, you
+  may distribute non-source (e.g., minimized or compacted) forms of
+  that code without the copy of the GNU LGPL normally required by
+  section 4, provided you include this license notice and a URL
+  through which recipients can access the Corresponding Source.
+
+  @licend  The above is the entire license notice
+  for the JavaScript code in this page.
+
+  @author Marcello Stanisci
+  @author Florian Dold
+*/
+
+
+export namespace taler {
+  "use strict";
+
+  let logVerbose: boolean = false;
+  try {
+    logVerbose = !!localStorage.getItem("taler-log-verbose");
+  } catch (e) {
+    // can't read from local storage
+  }
+
+  const presentHandlers: any[] = [];
+  const absentHandlers: any[] = [];
+
+  // Are we running as the content script of an 
+  // extension (and not just from a normal page)?
+  let runningInExtension = false;
+
+  let callSeqId = 1;
+
+  let installed = false;
+  let probeExecuted = false;
+  let pageLoaded = false;
+
+  let errorHandler: any = undefined;
+
+  let sheet: CSSStyleSheet;
+
+  export function onError(handler: any) {
+    if (errorHandler) {
+      console.warn("Overriding error handler");
+    }
+    errorHandler = handler;
+  }
+
+
+  /**
+   * Error handler for things that go wrong in the merchant
+   * frontend browser code.
+   */
+  function raise_error(reason: string, detail: any) {
+    if (errorHandler) {
+      errorHandler(reason, detail);
+      return;
+    }
+    alert(`Failure: ${reason}.  No error handler installed.  Open the developer console for more information.`);
+    console.error(reason, detail);
+    console.warn("No custom error handler set.");
+  }
+
+
+  function callWallet(funcName: string, args: any, onResult?: any): void {
+    const detail = JSON.parse(JSON.stringify(args || {}));
+    const callId = callSeqId++;
+    detail.callId = callId;
+    let onTimeout = () => {
+      console.warn("timeout for invocation of " + funcName);
+    }
+    const timeoutHandle: number = setTimeout(onTimeout, 1000);
+    let handler = (evt: CustomEvent) => {
+      if (evt.detail.callId !== callId) {
+        return;
+      }
+      if (onResult) {
+        onResult(evt.detail);
+      }
+      clearTimeout(timeoutHandle);
+      document.removeEventListener(funcName + "-result", handler);
+    };
+    document.addEventListener(funcName + "-result", handler);
+    const evt = new CustomEvent(funcName, {detail});
+    document.dispatchEvent(evt)
+  }
+
+
+  /**
+   * Confirm that a reserve was created.
+   *
+   * Used by tightly integrated bank portals.
+   */
+  export function confirmReserve(reservePub: string) {
+    if (!installed) {
+      logVerbose && console.log("delaying confirmReserve");
+      taler.onPresent(() => {
+        confirmReserve(reservePub);
+      });
+      return;
+    }
+    callWallet("taler-confirm-reserve", {reserve_pub: reservePub});
+  }
+
+
+  export function createReserve(callbackUrl: string, amount: any, wtTypes: string[], suggestedExchangeUrl?: string) {
+    if (!installed) {
+      logVerbose && console.log("delaying createReserve");
+      taler.onPresent(() => {
+        createReserve(callbackUrl, amount, wtTypes, suggestedExchangeUrl);
+      });
+      return;
+    }
+    let args = {
+      callback_url: callbackUrl,
+      amount: amount,
+      wt_types: wtTypes,
+      suggested_exchange_url: suggestedExchangeUrl
+    };
+    callWallet("taler-create-reserve", args);
+  }
+
+
+  function handlePaymentResponse(walletResp: any) {
+    /**
+     * Handle a failed payment.
+     *
+     * Try to notify the wallet first, before we show a potentially
+     * synchronous error message (such as an alert) or leave the page.
+     */
+    function handleFailedPayment(r: XMLHttpRequest) {
+      let timeoutHandle: number|null = null;
+      function err() {
+        raise_error("pay-failed", {status: r.status, response: r.responseText});
+      }
+      function onResp() {
+        if (timeoutHandle != null) {
+          clearTimeout(timeoutHandle);
+          timeoutHandle = null;
+        }
+        err();
+      }
+      function onTimeout() {
+        timeoutHandle = null
+        err();
+      }
+      callWallet("taler-payment-failed", {H_contract: walletResp.H_contract}, onResp);
+      timeoutHandle = setTimeout(onTimeout, 200);
+    }
+
+
+    logVerbose && console.log("handling taler-notify-payment: ", walletResp);
+    // Payment timeout in ms.
+    let timeout_ms = 1000;
+    // Current request.
+    let r: XMLHttpRequest|null;
+    let timeoutHandle: number|null = null;
+    function sendPay() {
+      r = new XMLHttpRequest();
+      r.open("post", walletResp.contract.pay_url);
+      r.setRequestHeader("Content-Type", "application/json;charset=UTF-8");
+      r.send(JSON.stringify(walletResp.payReq));
+      r.onload = function() {
+        if (!r) {
+          return;
+        }
+        switch (r.status) {
+          case 200:
+            const merchantResp = JSON.parse(r.responseText);
+            logVerbose && console.log("got success from pay_url");
+            callWallet("taler-payment-succeeded", {H_contract: walletResp.H_contract, merchantSig: merchantResp.sig}, () => {
+              let nextUrl = walletResp.contract.fulfillment_url;
+              logVerbose && console.log("taler-payment-succeeded done, going to", nextUrl);
+              window.location.href = nextUrl;
+              window.location.reload(true);
+            });
+            break;
+          default:
+            handleFailedPayment(r);
+            break;
+        }
+        r = null;
+        if (timeoutHandle != null) {
+          clearTimeout(timeoutHandle!);
+          timeoutHandle = null;
+        }
+      };
+      function retry() {
+        if (r) {
+          r.abort();
+          r = null;
+        }
+        timeout_ms = Math.min(timeout_ms * 2, 10 * 1000);
+        logVerbose && console.log("sendPay timed out, retrying in ", timeout_ms, "ms");
+        sendPay();
+      }
+      timeoutHandle = setTimeout(retry, timeout_ms);
+    }
+    sendPay();
+  }
+
+
+  export function onPresent(f: any) {
+    presentHandlers.push(f);
+  }
+
+  export function onAbsent(f: any) {
+    absentHandlers.push(f);
+  }
+
+  interface FulfillmentQuery {
+    type: "fulfillment_url";
+  }
+
+  interface OrderIdQuery {
+    type: "order_id";
+    order_id: string;
+  }
+
+
+  interface PayDetail {
+    contract_url?: string;
+    offer_url?: string;
+  }
+
+  export function internalPay(p: PayDetail) {
+    // either the callback gets called,
+    // or the wallet will redirect the browser
+    callWallet("taler-pay", p, handlePaymentResponse);
+  }
+
+  export function pay(p: PayDetail) {
+    if (!installed) {
+      logVerbose && console.log("delaying call to 'pay' until GNU Taler wallet is present");
+      taler.onPresent(() => {
+        pay(p);
+      });
+      return;
+    }
+    internalPay(p);
+  }
+
+  export interface AuditorDetail {
+    currency: string;
+    url: string;
+    auditorPub: string;
+    expirationStamp: number;
+  }
+
+
+  export function internalAddAuditor(d: AuditorDetail) {
+    // either the callback gets called,
+    // or the wallet will redirect the browser
+    callWallet("taler-add-auditor", d);
+  }
+
+
+  export function addAuditor(d: AuditorDetail) {
+    if (!installed) {
+      logVerbose && console.log("delaying call to 'addAuditor' until GNU Taler wallet is present");
+      taler.onPresent(() => {
+        addAuditor(d);
+      });
+      return;
+    }
+    internalAddAuditor(d);
+  }
+
+
+  export function internalCheckAuditor(url: string): Promise<AuditorDetail|undefined> {
+    return new Promise<AuditorDetail|undefined>((resolve, reject) => {
+      callWallet("taler-check-auditor", url, (x: any) => resolve(x as AuditorDetail));
+    });
+  }
+
+
+  /**
+   * Check if an auditor is already added to the wallet.
+   *
+   * Same-origin restrictions apply.
+   */
+  export function checkAuditor(url: string): Promise<AuditorDetail|undefined> {
+    if (!installed) {
+      logVerbose && console.log("delaying call to 'checkAuditor' until GNU Taler wallet is present");
+      return new Promise<AuditorDetail|undefined>((resolve, reject) => {
+        taler.onPresent(() => {
+          resolve(checkAuditor(url));
+        });
+      });
+    }
+    return internalCheckAuditor(url);
+  }
+
+
+  function initTaler() {
+
+    function handleUninstall() {
+      installed = false;
+      // not really true, but we want "uninstalled" to be shown
+      firstTimeoutCalled = true;
+      announce();
+    }
+
+    function handleProbe() {
+      probeExecuted = true;
+      if (!installed) {
+        logVerbose && console.log("taler install detected");
+        installed = true;
+        announce();
+      }
+    }
+
+    function probeTaler() {
+      probeExecuted = false;
+      var eve = new Event("taler-probe");
+      document.dispatchEvent(eve);
+    }
+
+    let firstTimeoutCalled = false;
+
+    function onProbeTimeout() {
+      if (!probeExecuted) {
+        if (installed || !firstTimeoutCalled) {
+          installed = false;
+          firstTimeoutCalled = true;
+          logVerbose && console.log("taler uninstall detected");
+          announce();
+        }
+      }
+      // try again, maybe it'll be installed ...
+      probeTaler();
+    }
+
+    /**
+     * Announce presence/absence and update stylesheets.
+     *
+     * Only called after document.readyState is at least "interactive".
+     */
+    function announce() {
+      if (!pageLoaded) {
+        logVerbose && console.log("page not loaded yet, announcing later");
+        return;
+      }
+      setStyles();
+      if (installed) {
+        logVerbose && console.log("announcing installed");
+        for (var i = 0; i < presentHandlers.length; i++) {
+          presentHandlers[i]();
+        }
+      } else {
+        if (firstTimeoutCalled) {
+          logVerbose && console.log("announcing uninstalled");
+          for (var i = 0; i < absentHandlers.length; i++) {
+            absentHandlers[i]();
+          }
+        } else {
+          logVerbose && console.log("announcing nothing");
+        }
+      }
+    }
+
+    function setStyles() {
+      if (!sheet || !sheet.cssRules) {
+        return;
+      }
+      while (sheet.cssRules.length > 0) {
+        sheet.deleteRule(0);
+      }
+      if (installed) {
+        sheet.insertRule(".taler-installed-hide { display: none; }", 0);
+        sheet.insertRule(".taler-probed-hide { display: none; }", 0);
+      } else {
+        sheet.insertRule(".taler-installed-show { display: none; }", 0);
+
+        if (firstTimeoutCalled) {
+          sheet.insertRule(".taler-probed-hide { display: none; }", 0);
+        } else {
+          // We're still doing the detection
+          sheet.insertRule(".taler-installed-hide { display: none; }", 0);
+        }
+      }
+    }
+
+    function initStyle() {
+      logVerbose && console.log("taking over styles");
+      const name = "taler-presence-stylesheet";
+      const content = "/* Taler stylesheet controlled by JS */";
+      let style = document.getElementById(name) as HTMLStyleElement|null; 
+      if (!style) {
+        style = document.createElement("style");
+        // Needed by WebKit
+        style.appendChild(document.createTextNode(content));
+        style.id = name;
+        document.head.appendChild(style);
+        sheet = style.sheet as CSSStyleSheet;
+      } else {
+        // We've taken over the stylesheet now,
+        // make it clear by clearing all the rules in it
+        // and making it obvious in the DOM.
+        if (style.tagName.toLowerCase() === "style") {
+          style.innerText = content;
+        }
+        if (!style.sheet) {
+          throw Error("taler-presence-stylesheet should be a style sheet (<link> or <style>)");
+        }
+        sheet = style.sheet as CSSStyleSheet;
+        while (sheet.cssRules.length > 0) {
+          sheet.deleteRule(0);
+        }
+      }
+    }
+
+    function onPageLoad() {
+      pageLoaded = true;
+      if (document.readyState == "complete") {
+        initStyle();
+      } else {
+        let listener = () => {
+          initStyle();
+          setStyles();
+        };
+        window.addEventListener("load", listener);
+      }
+
+      // We only start the timeout after the page is interactive.
+      window.setInterval(onProbeTimeout, 300);
+
+      announce();
+    }
+ 
+    probeTaler();
+    document.addEventListener("taler-probe-result", handleProbe, false);
+    document.addEventListener("taler-uninstall", handleUninstall, false);
+    // Handle the case where the JavaScript is loaded after the page
+    // has been loaded for the first time.
+    if (document.readyState == "loading") {
+      document.addEventListener("DOMContentLoaded", onPageLoad, false);
+    } else {
+      onPageLoad();
+    }
+  }
+
+  function onPageLoadInExtension() {
+    if (document.documentElement.getAttribute("data-taler-nojs")) {
+      logVerbose && console.log("doing taler initialization from extension (nojs)");
+      initTaler();
+    }
+  }
+
+  let caught = false;
+  try {
+    (chrome as any).runtime.sendMessage({type: "ping"});
+  } catch (e) {
+    caught = true;
+  }
+
+  if (caught) {
+    logVerbose && console.log("running taler-wallet-lib from page");
+    initTaler();
+  } else {
+    logVerbose && console.log("running taler-wallet-lib from extension");
+    runningInExtension = true;
+    // Wait for even style sheets to load
+    if (document.readyState != "complete") {
+      window.addEventListener("load", () => onPageLoadInExtension());
+    } else {
+      onPageLoadInExtension();
+    }
+  }
+}
+// @license-end
diff --git a/talermerchantdemos/blog/static/web-common/tsconfig.json b/talermerchantdemos/blog/static/web-common/tsconfig.json
new file mode 100644
index 0000000..7d51196
--- /dev/null
+++ b/talermerchantdemos/blog/static/web-common/tsconfig.json
@@ -0,0 +1,17 @@
+{
+  "compilerOptions": {
+    "target": "es3",
+    "jsx": "react",
+    "module": "umd",
+    "experimentalDecorators": true,
+    "noImplicitReturns": true,
+    "noFallthroughCasesInSwitch": true,
+    "strictNullChecks": true,
+    "noImplicitAny": true,
+    "lib": ["ES6", "DOM"]
+  },
+  "files": [
+    "taler-wallet-lib.ts",
+    "chrome-any.d.ts"
+  ]
+}