rem: EnableMenuItem(menuID, true); 
add: EnableMenuItem(menuID, (numSelected == 1)); 
context: function SetupEditAsNewMenuItem(menuID, numSelected, forceHide){	ShowMenuItem(menuID, (numSelected <= 1)&& !forceHide);	EnableMenuItem(menuID, true);}
meta: 8395	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/8395/ff95dba345478fb840527c155ce5a7d8b96ed9f2/mailContextMenus.js/buggy/mailnews/base/resources/content/mailContextMenus.js