this.securityButton.removeAttribute("label");  
  onSecurityChange : function(aWebProgress, aRequest, aState)  {    const wpl = Components.interfaces.nsIWebProgressListener;    this.securityButton.removeAttribute("label");    const wpl_security_bits = wpl.STATE_IS_SECURE |                              wpl.STATE_IS_BROKEN |                              wpl.STATE_IS_INSECURE |                              wpl.STATE_SECURE_HIGH |                              wpl.STATE_SECURE_MED |                              wpl.STATE_SECURE_LOW;    /* aState is defined as a bitmask that may be extended in the future.     * We filter out any unknown bits before testing for known values.     */    switch (aState & wpl_security_bits) {      case wpl.STATE_IS_SECURE | wpl.STATE_SECURE_HIGH:        this.securityButton.setAttribute("level", "high");        if (this.urlBar)          this.urlBar.setAttribute("level", "high");        try {          this.securityButton.setAttribute("label",            gBrowser.contentWindow.location.host);        } catch(exception) {}        break;      case wpl.STATE_IS_SECURE | wpl.STATE_SECURE_MED:      case wpl.STATE_IS_SECURE | wpl.STATE_SECURE_LOW:        this.securityButton.setAttribute("level", "low");        if (this.urlBar)          this.urlBar.setAttribute("level", "low");        try {          this.securityButton.setAttribute("label",            gBrowser.contentWindow.location.host);        } catch(exception) {}        break;      case wpl.STATE_IS_BROKEN:        this.securityButton.setAttribute("level", "broken");        if (this.urlBar)          this.urlBar.setAttribute("level", "broken");        break;      case wpl.STATE_IS_INSECURE:      default:        this.securityButton.removeAttribute("level");        if (this.urlBar)          this.urlBar.removeAttribute("level");        break;    }    var securityUI = gBrowser.securityUI;    this.securityButton.setAttribute("tooltiptext", securityUI.tooltipText);    var lockIcon = document.getElementById("lock-icon");    if (lockIcon)      lockIcon.setAttribute("tooltiptext", securityUI.tooltipText);  },
5459	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/5459/53e80a4aa519a8084a272ec3002e732f903ec8e6/browser.js/buggy/browser/base/content/browser.js