bug 301471 - error pages should have 'Try Again' button focused. r=biesi sr=bz

docshell/resources/content/netError.xhtml

@@ -158,6 +158,16 @@
         var ld = document.getElementById("errorLongDesc");
         if (ld)
           ld.innerHTML = parseFakeTags(errorDesc[err]);
+
+        // Focus the Try Again button.  We can't just do this inline because of
+        // bug 232004.  We can't use onload (see comment below).  Since the
+        // <script> that calls initPage is the last DOM node in the document,
+        // a setTimeout of 0 should work.
+        setTimeout(function(){
+          var tryAgainButton = document.getElementById("errorTryAgain");
+          if (tryAgainButton)
+            tryAgainButton.focus();
+        }, 0);
       }
     ]]></script>
   </head>