Her er et eks på hele koden:
<html>
<body>
<script LANGUAGE="Javascript">
yspan = 250;
function scrollBannerDown()
{
  if(yspan > 0)
  { 
    yspan = yspan - 35;
    if(yspan <= 0)
    { 
      yspan = 0; 
      document.getElementById('scrolldownbanner').style.top = 97 
    };
    document.getElementById('scrolldownbanner').style.clip = 'rect(' + yspan + ' auto auto auto)';
    if(yspan > 0)
    { 
      document.getElementById('scrolldownbanner').style.top = parseInt(document.getElementById('scrolldownbanner').style.top)+35;
    }; 
    setTimeout("scrollBannerDown()",100); 
  };
  else 
  {    
    setTimeout("scrollBannerUp()",3000);
  };
};
function scrollBannerUp()
{
  if(yspan < 250)
  { 
    yspan = yspan + 35 ;
    if(yspan >= 250)
    {
      yspan = 250;
      document.getElementById('scrolldownbanner').style.top = -154};
      document.getElementById('scrolldownbanner').style.clip = 'rect(' + yspan + ' auto auto auto)';
      if(yspan < 250)
      { 
        document.getElementById('scrolldownbanner').style.top = parseInt(document.getElementById('scrolldownbanner').style.top)-35;
      };
      setTimeout("scrollBannerUp()",50)
    };
    else
    { 
      mayclick = 1;
    };
  };
</script>
<SCRIPT LANGUAGE="Javascript">
  document.onload = setTimeout("scrollBannerDown()",2500);
</SCRIPT>
<script language="JavaScript1.2">
//a = eval((document.body.clientWidth-760)/2)+135;
//document.write ('<DIV ID=scrolldownbanner STYLE="top:-100px;left:'+a+'px;clip:rect(250px auto auto auto); position:absolute; width:490px; height:250px;">');
document.write ('<DIV ID=scrolldownbanner STYLE="top:-100px;left:100px;clip:rect(250px auto auto auto); position:absolute; width:490px; height:250px;">');
</script>                                        
<a href="
http://www.eksperten.dk" target="_blank">
  <img src="./hyttetur/06.jpg" border="0" width="490" height="250" alt="Banner">
</a>
<br>
<a onClick="scrollBannerDown();" HREF="#">
 <img SRC="./hyttetur/01.jpg" HEIGHT="1" WIDTH="427" border="0" alt="Linje Billede">
 <img BORDER="0" SRC="./hyttetur/02.jpg" border="0" WIDTH="62" HEIGHT="14" alt="Vis Reklame">
</a></div>
</body>
</html>
For at styre hvor den kommer kan du rette i tallene efter top og left. 0 punktet er center for top er midt i vinduet, da man har flytte DIV'en :
document.write ('<DIV ID=scrolldownbanner STYLE="top:-100px;left:100px;