Mi a baj ezzel a javascriptel?

var div = 4;

var sliderEnabled = true;

function scrFol()

{

var ad = document.getElementById( 'slider' );

var dPos = ( document.all ) ? document.body.scrollTop : window.pageYOffset;

if ( ( dPos == 0 ) && ( document.all ) )

dPos = document.documentElement.scrollTop;

dPos += 50;

var cPos = parseInt( ad.style.top );

if ( cPos == 0 )

cPos = dPos-1000;

var posDif = dPos-cPos;

if ( ( ad.style.display == 'none' ) && ( sliderEnabled ) )

ad.style.display = 'block';

if ( posDif > 0 )

ad.style.top = (cPos+Math.ceil(posDif/div))+'px';

else if ( posDif < 0 )

ad.style.top = (cPos+Math.floor(posDif/div))+'px';

if ( sliderEnabled )

setTimeout( 'scrFol()', 20 );

}

function closeFollowSlider()

{

sliderEnabled = false;

document.getElementById( 'slider' ).style.display = 'none';

}

setTimeout( 'scrFol()', 2000 );

</script>

<div id="slider" align="left" valign="top" style="filter: progid:DXImageTransform.Microsoft.Shadow(color=#000000,direction=135,strength=8); border:2px solid #BF0000; z-index:999; display:none; top:0px; position:absolute; top:0px; left:110px; padding:20px; width:470px; background:#FFFFFF">

<div align="right"><a href="javascript:closeFollowSlider();"><IMG src="close.gif" border=0></a></div>

<p><b>Üdvözöllek</b></p>

ez csak egy játék:)<br />

</div>