easyui datagrid 添加超鏈接

<th data-options="field:'planCode',formatter:planUrl" width="50">計劃編碼</th>

 

 function planUrl(val,row){
   if(val){
   return '<a href="javascript:alert('+val+')" οnclick="constructionManager(\'' + row.planCode+ '\')">'+val+'</a>';
   }
  }