rem: openDialog("chrome: "", "centerscreen,chrome,dialog=no,resizable=no", NODE_ID(aBookmarkItem)); 
add: if (aBookmarkItem.getAttribute("type") != NC_NS + "BookmarkSeparator") openDialog("chrome: "", "centerscreen,chrome,dialog=no,resizable=no", NODE_ID(aBookmarkItem)); 
context:   showPropertiesForNode: function (aBookmarkItem)   {    openDialog("chrome://communicator/content/bookmarks/bm-props.xul",               "", "centerscreen,chrome,dialog=no,resizable=no",                NODE_ID(aBookmarkItem));  },
meta: 9421	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/9421/3cc7841386df7eae0f49c9d3463910fd141a9438/bookmarksOverlay.js/clean/xpfe/components/bookmarks/resources/bookmarksOverlay.js