add: tn.setDragSource(this._dragSource); tn.setDropTarget(this._dropTarget); 
context:       var cb = function(obj, results) {         var dom = results.xml;         var dirs = dom.getElementsByTagName("dir");         for (var i = 0; i < dirs.length; i++) {            var c = dirs[i];            var name = c.getAttribute("name");            var n = new CifsNode(url, name);            var tn = new DwtTreeItem(item, null, n.label, "Folder");            tn.setData("cifsNode", n);         }         this.setSelection(item, true);         item.setExpanded(true);      }
meta: 4184	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/4184/aeadbbbcc141a129bf01230d33ff75884188eff4/DirTree.js/buggy/tran/exploder/webapps/browser/root/DirTree.js