allowing the button to get uncolored

1 files changed, 9 insertions, 1 deletions

diff --git a/src/frontend/checkout.php b/src/frontend/checkout.php
index 9ba371e6..0e06922a 100644
--- a/src/frontend/checkout.php
+++ b/src/frontend/checkout.php
@@ -153,7 +153,6 @@ function has_taler_wallet_cb(aEvent)
 
 };
 
-
 /* Function called when the Taler extension was unloaded, 
    here we disable the option */
 function taler_wallet_unload_cb(aEvent)
@@ -181,6 +180,15 @@ test_without_wallet();
 // first event
 document.body.addEventListener("taler-wallet-mfirst", has_taler_wallet_cb, false);
 
+// The following callback is used to allow the button to change its
+// color whenever the user navigates away from this page
+document.body.addEventListener("taler-shutdown",
+  function(){
+    var unloadEvent = new Event('taler-unload');
+    document.body.dispatchEvent(unloadEvent);
+  },
+  false);
+
 // event awaited by the wallet to change its button's color
 // alert("sending");
 // var eve = new Event('taler-payment-mfirst');