add: if (!this.isEnabled() || this._hresize.column != null) return; 
context:     _columnClickListener: function(event) {        var columnHeader = tw_getEventTarget(event, "gridBoxColumnHeader");        var cn = this._header.childNodes;                for (var index = cn.length; --index >= 0;) if (cn.item(index) === columnHeader) break;        tw_em.sendViewStateChanged(this._id, "columnSort", index);            },
meta: 5515	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/5515/f1782c774313ba79c127ba5da30580c5ce1f4c32/GridBox.js/buggy/src/thinwire/render/web/resources/GridBox.js