function showcaseButtonMenuClicked(event) {
  var targetCommand = document.getElementById(event.target.getAttribute("command"));
  gPrefService.setCharPref("custombuttons.showcaseButton.showcaseCommand", targetCommand.getAttribute("oncommand"));
  gPrefService.setCharPref("custombuttons.showcaseButton.showcaseType", event.target.getAttribute("showcaseType"));
  event.target.parentNode.parentNode.setAttribute("showcaseType", event.target.getAttribute("showcaseType"));
}
 
function showcaseButtonSidebarMenuClicked(event) {
  gPrefService.setCharPref("custombuttons.showcaseButton.showcaseCommand", "toggleSidebar(\"" + event.target.getAttribute("targetObserver") + "\");");
  gPrefService.setCharPref("custombuttons.showcaseButton.showcaseType", event.target.getAttribute("showcaseType"));
  event.target.parentNode.parentNode.setAttribute("showcaseType", event.target.getAttribute("showcaseType"));
  toggleSidebar(event.target.getAttribute("targetObserver"));
}
 
var mPopup = document.createElement("menupopup");
//mPopup.setAttribute("oncommand", "event.stopPropagation(); //this.parentNode.savePrefs(event)");
 
try {
this.setAttribute("showcaseType", gPrefService.getCharPref("custombuttons.showcaseButton.showcaseType"));
} catch (e) { }
 
var showcaseType = this.getAttribute("showcaseType");
var sm = document.getElementById("menu_showcase").firstChild;
var selectedMenuItem = null;
 
for(var i = 0; i < sm.childNodes.length; i++) {
  var cmi = sm.childNodes[i];
  if (cmi.localName == "menuseparator") {
    mPopup.appendChild(document.createElement("menuseparator"));
    var mi = mPopup.appendChild(document.createElement("menuitem"));
    mi.addEventListener("click", showcaseButtonSidebarMenuClicked, false);
    mi.setAttribute("label", document.getElementById("viewShowcaseThisWindowSidebar").getAttribute("label"));
    mi.setAttribute("targetObserver", "viewShowcaseThisWindowSidebar");
    mi.setAttribute("showcaseType", "CBshowcaseThisWindowSidebarMenuItem");
    mi.setAttribute("type", "radio");
    mi.setAttribute("name", "CBShowcaseButton");
    if (mi.getAttribute("showcaseType") == showcaseType) {
      selectedMenuItem = mi;
    }
    mi = mPopup.appendChild(document.createElement("menuitem"));
    mi.addEventListener("click", showcaseButtonSidebarMenuClicked, false);
    mi.setAttribute("label", document.getElementById("viewShowcaseSidebar").getAttribute("label"));
    mi.setAttribute("targetObserver", "viewShowcaseSidebar");
    mi.setAttribute("showcaseType", "CBshowcaseSidebarMenuItem");
    mi.setAttribute("type", "radio");
    mi.setAttribute("name", "CBShowcaseButton");
    if (mi.getAttribute("showcaseType") == showcaseType) {
      selectedMenuItem = mi;
    }
    mPopup.appendChild(document.createElement("menuseparator"));
  } else {
    var mi = mPopup.appendChild(document.createElement("menuitem"));
    mi.setAttribute("label", cmi.getAttribute("label"));
    mi.setAttribute("image", cmi.getAttribute("image"));
    mi.setAttribute("command", cmi.getAttribute("command"));
    mi.setAttribute("showcaseType", "CB" + cmi.getAttribute("id"));
    if (cmi.getAttribute("id") != "showcaseOptionsMenuItem") {
      mi.setAttribute("type", "radio");
      mi.setAttribute("name", "CBShowcaseButton");
      mi.addEventListener("click", showcaseButtonMenuClicked, false);
    }
    if (mi.getAttribute("showcaseType") == showcaseType) {
      selectedMenuItem = mi;
    }
  }
}
 
this.appendChild(mPopup);
this.type = "menu-button";
 
if (selectedMenuItem != null) {
  selectedMenuItem.setAttribute("checked", true);
}this.setAttribute('homepage', 'http://custombuttons2.com/forum/buttons/buttons-database/firefox-showcase-joseprio.html');