diff --git a/app/views/repositories/_revision_graph.html.erb b/app/views/repositories/_revision_graph.html.erb
index 02e26de14..34d849924 100644
--- a/app/views/repositories/_revision_graph.html.erb
+++ b/app/views/repositories/_revision_graph.html.erb
@@ -5,9 +5,9 @@
 <%= javascript_include_tag "revision_graph.js" %>
 
 <script type="text/javascript">
-  window.onload = function(){
+  Event.observe(window,"load", function(){
     branchGraph(document.getElementById("holder"));
-  }
+  })
 </script>
 
 <div id="holder" class="graph"></div>