Extjs grid 某列点击弹窗

 {
                             header : "单号",
                             tooltip : '单号',
                             dataIndex : 'transportCode',
                             width : 130,
                             sortable : true,
                             renderer : function(value, cellmeta, record, rowIndex, columnIndex, store) {
                                 return ' <a href="#" onclick="javascript:showWayBillsInfoFn(\'' + value + '\');">'+value+'</a>';
                             }
                         }