add:    jsStatus = null; 
context:   setJSStatus : function(status)  {    if(status == "")      jsStatus = null;    else      jsStatus = status;    UpdateStatusField();  },
meta: 5459	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/5459/61271d46caeef1d160080307c49ca8f13a2e109e/navigator.js/buggy/xpfe/browser/resources/content/navigator.js