Embedded YouTube - back button not clearing youtube heading

Embedded YouTube - back button not clearing youtube heading

Hello
 
I have e mbedded a Youtube video on to a mobile website .....
 
<div data-role="page" id="includ2" data-theme="c"  data-direction="reverse" data-position="fixed">
       <div data-role="header">
               <h2>Video</h2>
       </div><!-- /header -->
        <div>
               <iframe width="280" height="158" src="http://www.youtube.com/embed/dR8lt_NkfDI?rel=0" frameborder="0" allowfullscreen></iframe>
       </div><!-- /content -->





</div><!-- /page -->
 
 
This plays the video fine . The problem is when the "back" button is used after paying the Youtube vedio. The Youtube video title is not cleared and is displayed over the home page
 
What can I change / set in the "heading" parameters to clear the Youtube heading?
 
Thanks,  Pete