rem: var nodeName = node.nodeName; 
add: var nodeName = node.localName; 
context:    function isScrollbar(node)   {     while (node)     {       var nodeName = node.nodeName;       if (nodeName == "")         return false;       if (nodeName == "scrollbar")         return true;       node = node.parentNode;     }     return false;  }
meta: 9421	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/9421/92ecd690ac1f8130ed77b0740e4cc28c75fe4c51/navigator.js/clean/xpfe/browser/resources/content/navigator.js