rem: if (!this.isEnabled()) return; 
add: if (!this._enabled) return; 
context:     _cellClickListener: function(event) {        if (!this.isEnabled()) return;        this.setFocus(true);        var cell = tw_getEventTarget(event);        var column = cell.parentNode;        var position = this._getCellPosition(cell);        this.setRowIndexSelected(position[1], true);                if (this._visibleCheckBoxes) {            if (this._fullRowCheckBox || (tw_getEventOffsetX(event) < 16 && this._content.childNodes.item(0) == column)) {                this.setRowIndexCheckState(position[1], -1, true);            }                        var msg = position.join("@");            var action = this._getClickAction(event.type, msg);            if (action == null) return;            this.fireAction(action, msg);        } else {            var msg = position.join("@");            var action = this._getClickAction(event.type, msg);            if (action == null) return;            this.fireAction(action, msg);                        if (this._lastColumn().childNodes.item(position[1]).tw_child != undefined) {                this._setChildVisible(position[1], true);            } else {                this._root.closeChildren();                                //TODO DROPDOWN: GridBox won't play nice                if (this._root.getParent() instanceof tw_DropDown) {                    this._root.setVisible(false);                }            }        }                    },
meta: 5515	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/5515/d532c0ea03ef1c91856bba5408f049541b39c2ba/GridBox.js/buggy/src/thinwire/render/web/resources/GridBox.js