easyui dialog显示关闭再打开重复显示上次内容

var url = *********；

 $('#estimateAtomicTable').dialog({
title:'',
iconCls:'icon-add',
modal:true,
width:900,
height:600,
//href:url,
closed:true,
buttons:[{
text:'取消',
iconCls:'icon-cancel',
handler:function(){
$('#estimateAtomicTable').dialog('close');
},
}]
});
$('#estimateAtomicTable').dialog('open').dialog('refresh', url); ;