EasyUi下拉框选值时触发js事件。

具体实列：

<td><select name="politicalType" id="politicalType" style="width:150px;" 
class="easyui-combobox" data-options="editable:false" onchange="change()">
 <option value="1" <c:if test="${custom.politicalType==1}">selected="selected"</c:if>>中共党员</option>
 <option value="2" <c:if test="${custom.politicalType==2}">selected="selected"</c:if>>中共预备党员</option>
 <option value="3" <c:if test="${custom.politicalType==3}">selected="selected"</c:if>>共青团员</option>
 <option value="4" <c:if test="${custom.politicalType==4}">selected="selected"</c:if>>民革党员</option>
 <option value="5" <c:if test="${custom.politicalType==5}">selected="selected"</c:if>>民盟盟员</option>
 <option value="6" <c:if test="${custom.politicalType==6}">selected="selected"</c:if>>民建会员</option>
 <option value="7" <c:if test="${custom.politicalType==7}">selected="selected"</c:if>>民进会员</option>
 <option value="8" <c:if test="${custom.politicalType==8}">selected="selected"</c:if>>农工党党员</option>
 <option value="9" <c:if test="${custom.politicalType==9}">selected="selected"</c:if>>致公党党员</option>
 <option value="10" <c:if test="${custom.politicalType==10}">selected="selected"</c:if>>九三学社社员</option>
 <option value="11" <c:if test="${custom.politicalType==11}">selected="selected"</c:if>>台盟盟员</option>
 <option value="12" <c:if test="${custom.politicalType==12}">selected="selected"</c:if>>无党派人士</option>
 <option value="13" <c:if test="${custom.politicalType==13}">selected="selected"</c:if>>群众</option>							
</select></td>

js触发下拉事件：

$("#politicalType").combobox({
            onSelect: function () {
            var newPtion = $("#politicalType").combobox(\'getText\')
            if (newPtion == "中共党员") {
                $(\'#partyBranchId\').combobox(\'enable\'); //允许easyui下拉框使用
                $(\'#subjection\').textbox(\'textbox\').attr(\'readonly\',false); //允许easyui文本框使用
                $(\'#partyDuties\').textbox(\'textbox\').attr(\'readonly\',false);
                $(\'#partyFee\').textbox(\'textbox\').attr(\'readonly\',false);
                $(\'#joinPartyDate\').datebox(\'enable\');
            }
            else {
                //党建信息
                $(\'#partyBranchId\').combobox(\'disable\');   //禁止easyui下拉框使用
                $(\'#subjection\').textbox(\'textbox\').attr(\'readonly\',true); //禁止easyui文本框使用
                $(\'#partyDuties\').textbox(\'textbox\').attr(\'readonly\',true);
                $(\'#partyFee\').textbox(\'textbox\').attr(\'readonly\',true);
                $(\'#joinPartyDate\').datebox(\'disable\');
             }
         }
        });