add: dump('****** returning null 3\n'); 
context:   function enclosingLink(node)  {    while (node)    {      var nodeName = node.localName;      if (nodeName == "")        return null;      nodeName = nodeName.toLowerCase();      if (nodeName == "" || nodeName == "body"          || nodeName == "html" || nodeName == "#document")        return null;      var href = node.href;      if (nodeName == "a" && href != "")        return node;      node = node.parentNode;    }    return null;  }
meta: 9421	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/9421/34b0b9a1e3f57bd0041b01055e50f30b8927d9b7/navigator.js/buggy/xpfe/browser/resources/content/navigator.js