rem: if (obj.value != "twisty" && col.value == "selectedColumn") 
add: if (obj.value != "twisty" && col.value.id == "selectedColumn") 
context: function selectFolderTreeOnClick(event){  // we only care about button 0 (left click) events  if (event.button != 0 || event.originalTarget.localName != "treechildren")   return;   var row = {}, col = {}, obj = {};  gFolderPickerTree.treeBoxObject.getCellAt(event.clientX, event.clientY, row, col, obj);  if (row.value == -1 || row.value > (gFolderPickerTree.view.rowCount - 1))    return;  if (event.detail == 2) {    // only toggle the search folder state when double clicking something    // that isn't a container    if (!gFolderPickerTree.view.isContainer(row.value)) {      ReverseStateFromNode(row.value);      return;    }   }  else if (event.detail == 1)  {    if (obj.value != "twisty" && col.value == "selectedColumn")      ReverseStateFromNode(row.value)  }}
meta: 5459	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/5459/fae0bbb3e68224656c8b6d12179ad092564f5458/virtualFolderListDialog.js/clean/mailnews/base/resources/content/virtualFolderListDialog.js