Prevent page jump to top when clicking on tab

Prevent the click event from acting like a link, so that it doesn't
jump to the top of the page when a user clicks on the Browsers or
Configuration tab of a node within the console.

java/server/src/org/openqa/grid/images/consoleservlet.js

@@ -28,10 +28,11 @@
   }
 
   $(document).ready(function() {
-    $(".tabs li").click(function() {
+    $(".tabs li").click(function(event) {
       var currentProxy = $(this).closest('.proxy');
       var type = $(this).attr('type');
       show(currentProxy, type);
+      event.preventDefault(); // Prevent the click from going to the top of the page
     });
     showDefaults();
   });