function launch_site() {



url = "base.html";

 

screenWidth = screen.availWidth;

screenHeight = screen.availHeight;



popupWidth = 1280;

popupHeight = 804;

 

leftPos = screenWidth/2-(popupWidth/2);

topPos = screenHeight/2-(popupHeight/2);

 

 site = window.open(url,'common1','toolbar=no,location=no,status=no,menubar=no,scrollbars=no,width='+popupWidth+',height='+popupHeight+',left='+leftPos+',top='+topPos+',resizable=no');

 site.focus(); 

}