lo tengo asi pero sigue sin hacer nada en internet explorer y lo mismo en firefox
Código Javascript
:
Ver original<script type="text/javascript">
self.onscroll = function(){
var top = self.pageYOffset || document.body.scrollTop;
var visible = window.innerHeight;
var banner = document.getElementById('banner');
banner.style.height = '600px';
return parseFloat(top) > parseFloat(banner.style.height) - parseFloat(visible) && (banner.style.position = 'fixed');
}
</script>
<div id="banner" style="margin:0px;">
<table width="160" border="0" align="center" cellpadding="0" cellspacing="0">
<tr>
<td width="160" height="600" align="center" bgcolor="#F0F0F0">
<script type="text/javascript">
<!--
google_ad_client = "ca-pub-1895931916113289";
/* vertical derechoo */
google_ad_slot = "9558447790";
google_ad_width = 160;
google_ad_height = 600;
//-->
</script>
<script type="text/javascript"
src="[URL]http://pagead2.googlesyndication.com/pagead/show_ads.js[/URL]">
</script></td>
</tr>
</table>
</div