Portlet and IFrame

Hi,

We are using SmartGWT 4.1 PRO.

My question is, if we are loading contents from a url, and if we drag and drop the protlet, how we can prevent the url to be loaded again ?

You can find the test case in the showcase itself,

http://www.smartclient.com/smartgwt/showcase/#window_contents_portal_layout

here if you type anything in wikipedia search and drag and drop that window, the internal page gets reloaded when portlet is dropped.

Is there any way we can prevent this from happening (reloading the page when portlet is dropped ) ? Or can we use any other widget other than portlet ?

Please suggest, its very critical requirement for me to achieve.