select 下拉框的复选

<td>近期活动</td>

<td>

<select id="activities" name="activities" data-options="editable:true" style="width:200px;height:30px">

</select>

<div id="sp">

<c:forEach items="${prolist }" var="b">

<input type="checkbox" name="activities"value="${b.id}">

<span>${b.name}</span>

<br />

</c:forEach>

</div>

</td>

Js部分

$(function() {

    $('#activities').combo({

      required : true,

      editable : true,

      multiple : true

    });

$('#sp').appendTo($('#activities').combo('panel'));

    $("#sp input")

        .click(

            function() {

              var _value = "";

              var _text = "";         $("[name=activities]:input:checked").each(function() {

_value += $(this).val() + ",";

_text += $(this).next("span").text() + ",";

              });

              //设置下拉选中值

$('#activities').combo('setValue', _value).combo('setText', _text);});

});