function $(id)
{
   return document.getElementById(id);
}
var anndelay = 5000;
var anncount = 0;
var annheight = 136;
var annst = 0;
function interlacingScroll()
{
   if( ! annst)
   {
      $('interlacing').innerHTML += '<br style="clear: both" />' + $('interlacing').innerHTML;
      $('interlacing').scrollTop = 0;
      if($('interlacing').scrollHeight > annheight * 2)
      {
         annst = setTimeout('interlacingScroll()', anndelay);
      }
      else
      {
         $('interlacing').onmouseover = $('interlacing').onmouseout = null;
      }
      return;
   }
   if(anncount == annheight)
   {
      if($('interlacing').scrollHeight - annheight <= $('interlacing').scrollTop)
      {
         $('interlacing').scrollTop = $('interlacing').scrollHeight / 2 - annheight;
      }
      anncount = 0;
      annst = setTimeout('interlacingScroll()', anndelay);
   }
   else
   {
      $('interlacing').scrollTop ++ ;
      anncount ++ ;
      annst = setTimeout('interlacingScroll()', 10);
   }
}
interlacingScroll();