top.moveTo (0,0);

if (document.all)
  top.window.resizeTo (screen.availWidth,screen.availHeight);
else 
 {
  if (document.layers || document.getElementById)
    if ((top.outerHeight < (screen.availHeight - 5)) || (top.outerWidth < (screen.availWidth - 5)))
     {
      top.outerHeight = screen.availHeight;
      top.outerWidth = screen.availWidth;
     }
 }