add: return; 
context: function setFormToolbar(){  // keep form toolbar hidden if checkbox in view menu so indicates  var cmd_viewformToolbar = document.getElementById("cmd_viewformtoolbar");  if (cmd_viewformToolbar) {    var checkValue = cmd_viewformToolbar.getAttribute("checked");    if (checkValue == "false") {      return;    }  }  // hide form toolbar if there is no form on the current page  var formToolbar = document.getElementById("FormToolbar");  if (!formToolbar) {    return;  }  if (!window._content.document) {    formToolbar.setAttribute("hidden", "true");    return;  }  var formsArray = window._content.document.forms;  if (!formsArray || formsArray.length == 0) {    formToolbar.setAttribute("hidden", "true");    return;  }  formToolbar.removeAttribute("hidden");  // enable prefill button if there is at least one saved value for the form  var formPrefill = document.getElementById("formPrefill");  var walletService = Components.classes["@mozilla.org/wallet/wallet-service;1"].getService(Components.interfaces.nsIWalletService);  var form;  for (form=0; form<formsArray.length; form++) {    var elementsArray = formsArray[form].elements;    var element;    for (element=0; element<elementsArray.length; element++) {      var type = elementsArray[element].type;      if (type=="" || type=="text" || type=="select-one") {        var value = walletService.WALLET_PrefillOneElement          (window._content, elementsArray[element]);        if (value != "") {          // element has a saved value, thus prefill button is to appear in toolbar          formPrefill.setAttribute("disabled", "false");          return;        }      }    }  }  formPrefill.setAttribute("disabled", "true");}
meta: 8395	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/8395/7bfd0cd1f2a5d610066455cdc9c9b6c84c989484/navigator.js/clean/suite/browser/navigator.js