You can set the 'href' property to delay loading the panel's content.
<div class="easyui-layout" style="width:700px;height:350px;">
<div data-options="region:'north'" style="height:50px"></div>
<div data-options="region:'center',href:'_content.html'"></div>
</div>
Another way to solve this issue is to hide the special elements util all the components are parsed completely.
<body style="visibility:hidden">
...
</body>
<script type="text/javascript">
$.parser.onComplete = function(context){
$('body').css('visibility','visible');
}
</script>
