可取消選擇的單選框

rowClickFn: function(idx,obj){
				var tr=jQuery(event.target).closest("tr"), radio=tr.find(":radio"), v=radio.attr("chked")=="1";
				tr.siblings().find(":radio").removeAttr("chked");
				radio.attr("chked",v?0:1).removeAttr("checked").get(0).checked = !v;
			}