Links to an iFrame not working

Webpage error details

User Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0; .NET CLR 1.1.4322; InfoPath.2; .NET CLR 2.0.50727; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729)
Timestamp: Wed, 29 Apr 2009 18:28:44 UTC


Message: Object expected
Line: 1
Char: 1
Code: 0
URI: about:blank

<a href="javascript:linked();" target="framed">See all</a>
<iframe name="framed"> </iframe>

<style type="text/css">
    iframe{width: 700px; height: 350px;}
</style>
<script type="text/javascript">
    function linked(){window.open('http://www.yahoo.com', 'framed')}    
</script>