dojo如何实现省份地市级联

Question

具体页面展示如下：
<label for="province">省份：</label>
<span data-dojo-type="dojo/data/ItemFileWriteStore" data-dojo-id="provinceStore" data-dojo-props="url:'../../../province.action'"></span>
<select id="province" data-dojo-type="dijit/form/ComboBox" name="province" data-dojo-props="store:provinceStore,searchAttr:'name',labelAttr:'name'"></select><label for="city">地市：</label>
<select id="city" data-dojo-type="dijit/form/ComboBox" name="city" data-dojo-props="searchAttr:'name',labelAttr:'name'"></select>

Answer 1

刚才这个是页面显示的，现在要做的是在省份<select></select>写一个事件，通过provinceId查询到地市名称

Answer 2

<script type="dojo/on" data-dojo-event="change"></script>