$(function() {

 var PARENTID = $('#PARENTID').combobox({ 

     method :'get', 

     editable: false,

     valueField:'ID',

     textField:'NAME',

     url:'<%=path%>/SqtypeSet/doGetValueByPara?IS_USE=1&LEVEL=1', 

     onSelect: function (record) { 

             SQ_SQTYPE.combobox({ 

                     disabled: false,

                     url: "<%=path%>/SqtypeSet/doGetValueByPara?PARENTID="+record.ID,                         valueField: 'ID', textField: 'NAME' 

             }).combobox('clear');

 } }); 

 var SQ_SQTYPE = $('#SQ_SQTYPE').combobox({ 

         disabled: true, 

         editable: false,

         valueField:'ID',

         textField:'NAME', 

         url:'<%=path%>/SqtypeSet/doGetValueByPara?IS_USE=1&LEVEL=2', 

 }); });