About DNN ajax

DNN uses iframe to mock ajax effect.

 Eg: installation progress notification div.

<form name="TheForm" method="post" target="" action="http://localhost/DotNetNuke_Community/Install/InstallWizard.aspx?__U=1333186680507"><input type="hidden" name="ctx" value="2"><input type="hidden" name="__DNNCAPISCI" value="__Page"><input type="hidden" name="__DNNCAPISCP" value="06.00.01"></form>"