bug fix.

git-svn-id: https://hudson.dev.java.net/svn/hudson/trunk/hudson/main@4085 71c3de6d-444a-0410-be80-ed276b4c234a

war/resources/scripts/hudson-behavior.js

@@ -642,7 +642,8 @@ function getStyle(e,a){
   if(document.defaultView && document.defaultView.getComputedStyle)
     return document.defaultView.getComputedStyle(e,null).getPropertyValue(a.replace(/([A-Z])/g, "-$1"));
   if(e.currentStyle)
-    return e.currentStyle[rzCC(a)];
+    return e.currentStyle[a];
+  return null;
 };
 
 // set up logic behind the search box