Hook up compare revisions selector

lib/gollum/frontend/public/javascript/gollum.js

@@ -29,7 +29,6 @@ $(document).ready(function() {
   
     $('#wiki-history td.revert-action a').mouseenter(highlightOn);
     $('#wiki-history td.revert-action a').mouseleave(highlightOff);
-  }
     
     if ($('td.revert-action a').length) {
       $('td.revert-action a').click(function(e) {
@@ -50,6 +49,15 @@ $(document).ready(function() {
       });
     }
 
+    if ($('.history a.action-compare-revision').length) {
+      $('.history a.action-compare-revision').click(function() {
+        $("#version-form").submit();
+      });
+    }
+  }
+  
+
+  
   if ($('#searchbar a#search-submit').length) {
     $.GollumPlaceholder.add($('#searchbar #search-query'));
     $('#searchbar a#search-submit').click(function(e) {