javascript:OpenPopUpPage will close automatically, on safari 5.1.7

i have added the following code to display pop-ups:-

<li class="ms-comm-adminLinksListItem" unselectable="on"><a href="javascript:OpenPopUpPage('http://192.168.8.221/view/viewer_index.shtml?id=726',1000,1000);" unselectable="on">Camera One</a></li><li class="ms-comm-adminLinksListItem" unselectable="on"><a href="javascript:OpenPopUpPage('http://192.168.8.95/view/viewer_index.shtml?id=736',1200,1200);" unselectable="on">Camera Two</a></li>
But when i open the pop-up on safari web browser , the pop-up will disappear automatically after sometime (around 10 seconds, and when i reopen it it will close after 30 seconds) and safari will do a full refresh for the SharePoint web page.

While i tested this on chrome, IE & firefox and none of them have this problem ? so any ideas what is causing this problem on safari and why it will automatically close the pop-up windows and do full web page refresh ?

thanks