rem: var columns = document.getElementsByTagName('outlinercol'); 
add: var columns = document.getElementsByTagName('treecol'); 
context: function enable_sort_menuitems(){  var columns = document.getElementsByTagName('outlinercol');  var menuitem = document.getElementById('fill_after_this_node');  menuitem = menuitem.nextSibling  for (var i = 0; (i < columns.length) && menuitem; ++i) {    var column_node = columns[i];    if (column_node.getAttribute("hidden") == "true")      menuitem.setAttribute("disabled", "true");    else      menuitem.removeAttribute("disabled");    menuitem = menuitem.nextSibling;  }}
meta: 5872	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/5872/d38a0937d9c93a0a9d913e2ac781e4328bb8cc73/nsTreeSorting.js/buggy/xpfe/global/resources/content/nsTreeSorting.js