rem: openDialog("chrome: "chrome,titlebar,resizable,modal", paneURL, containerID, itemID); 
add: openDialog("chrome: 
context: function openOptionsDialog(containerID, paneURL, itemID){  //check for an existing pref window and focus it; it's not application modal  const kWindowMediatorContractID = "@mozilla.org/appshell/window-mediator;1";  const kWindowMediatorIID = Components.interfaces.nsIWindowMediator;  const kWindowMediator = Components.classes[kWindowMediatorContractID].getService(kWindowMediatorIID);  var lastPrefWindow = kWindowMediator.getMostRecentWindow("Mail:Options");    if (lastPrefWindow)    lastPrefWindow.focus();  else     openDialog("chrome://communicator/content/pref/pref.xul","PrefWindow",                "chrome,titlebar,resizable,modal", paneURL, containerID, itemID);}
meta: 9421	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/9421/2f89fc42a50f89f0f674577ec3d515a7014297f8/mailCore.js/clean/mail/base/content/mailCore.js