rem: child = aParent.lastChild; 
add: var child = aParent.lastChild; 
context:   realHideOpenInTabsMenuItem: function (aParent)  {    if (!aParent.hasChildNodes())      return;    child = aParent.lastChild;    var removed = 0;    while (child) {      var cclass = child.getAttribute("class");      if (cclass == "openintabs-menuitem" || cclass == "openintabs-menuseparator") {        var prevchild = child.previousSibling;        aParent.removeChild(child);        child = prevchild;        removed++;        if (removed == 2)          break;      } else {        child = child.previousSibling;      }    }  },
meta: 5872	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/5872/b72d2e01ea1082913586ca8cc1e88065977d254a/bookmarksMenu.js/buggy/browser/components/bookmarks/content/bookmarksMenu.js