77535f9c2f0f37a7ec675eda36497de98cdcc517
kate
  Wed Apr 16 08:41:11 2014 -0700
Using jQuery for more concise code
diff --git src/hg/js/edwPersona.js src/hg/js/edwPersona.js
index 3dbe144..c8d2340 100644
--- src/hg/js/edwPersona.js
+++ src/hg/js/edwPersona.js
@@ -1,52 +1,45 @@
 /* edwPersona.js - Hooks up signin and signout buttons to Persona authentication. */
 
 $(function () {
-    var email = $.cookie("email");
-    var signInLink = document.getElementById('signin');
-    if (signInLink) {
-        signInLink.onclick = function() { navigator.id.request(); };
-    }
-
-    var signOutLink = document.getElementById('signout');
-    if (signOutLink) {
-        signOutLink.onclick = function() { navigator.id.logout(); };
-    }
+    var email = $.cookie('email');
+    $('#signin').click(function(){ navigator.id.request(); });
+    $('#signout').click(function(){ navigator.id.logout(); });
 
     // update navigation bar to show email of logged in user
     if (email != null) {
         $('#edw-user').text(email);
     } else {
         $('#signout').hide();
     }
 
     navigator.id.watch({
       loggedInUser: email,
       onlogin: function(assertion) {
 	// A user has logged in! Here you need to:
 	// 1. Send the assertion to your backend for verification and to create a session.
 	// 2. Update your UI.
 	$.ajax({ /* <-- This example uses jQuery, but you can use whatever you'd like */
 	  type: 'POST',
 	  url: 'edwWebAuthLogin', // This is a URL on your website.
 	  data: {assertion: assertion},
 	  success: function(res, status, xhr) { window.location.reload(); },
 	  error: function(xhr, status, err) {
 	    navigator.id.logout();
 	    alert("Login failure: " + err);
 	  }
 	});
       },
       onlogout: function() {
 	// A user has logged out! Here you need to:
 	// Tear down the user's session by redirecting the user or making a call to your backend.
 	// Also, make sure loggedInUser will get set to null on the next page load.
 	// (That's a literal JavaScript null. Not false, 0, or undefined. null.)
 	$.ajax({
 	  type: 'POST',
 	  url: 'edwWebAuthLogout', // This is a URL on your website.
 	  success: function(res, status, xhr) { window.location.reload(); },
 	  error: function(xhr, status, err) { alert("Logout failure: " + err); }
 	});
       }
     });
 });