rem: if (!this._enabled) return null;  
context:     getDragBox: function(event) {        if (!this._enabled) return null;                var item = tw_getEventTarget(event, "treeRow");        if (item == null) return null;        var dragBox = document.createElement("div");        var images = item.getElementsByTagName("img");        dragBox.appendChild(images[images.length - 1].cloneNode(true));        dragBox.appendChild(item.getElementsByTagName("span")[0].cloneNode(true));                var s = dragBox.style;        s.position = "absolute";        s.height = tw_Tree.rowHeight + "px";        s.fontFamily = this._box.style.fontFamily;        s.fontSize = this._box.style.fontSize;        s.color = tw_COLOR_HIGHLIGHTTEXT;        s.backgroundColor = tw_COLOR_HIGHLIGHT;                dragBox._dragObject = this._fullIndex(item);        return dragBox;    },
meta: 5515	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/5515/cfa7cacc22cf44240d4fdac2a16ac0b70fe21708/Tree.js/buggy/src/thinwire/render/web/resources/Tree.js