<td align="right">数据来源：</td>
    <td align="left">
        <select class="easyui-combobox" id="frmSel" style="width:175px;" data-options="editable:false,
            valueField:'code',
    textField:'value',
            onSelect: function(rec){
                var url = '${ctx}/order/getAgentByGds?frm='+rec.code;
                $('#agentSel').combobox('reload', url);
            }">
            <option value="" >--请选择--</option>
            <c:forEach var="it" items="${frmList}">
<option value="${it.code}">${it.value}</option>
</c:forEach>
        </select>
    </td>
    <td align="right">供应商：</td>
    <td align="left">
        <select class="easyui-combobox" id="agentSel" style="width:175px;" data-options="editable:false,valueField:'code',textField:'value',
        loadFilter:function(data){
               $(this).combobox('clear'); //清除之前的选择值
               var opts = $(this).combobox('options');
               var emptyRow = {};
               emptyRow[opts.valueField] = '';
               emptyRow[opts.textField] = '--请选择--';
               data.unshift(emptyRow);
               return data;
          }">
        </select>
    </td>