<head>
<script type="text/javascript">
function openUpload() {
var win = new Window({className: "spread", title: "Ruby on Rails", top:70, left:100, width:300, height:200, url: "http://www.rubyonrails.org/", showEffectOptions: {duration:1.5}}) win.show();
}
</script>
</head>
<h:outputLink onclick="javascript:openUpload()">clique aqui</h:outputLink>
mas nao funciona....