js加入收藏夹代码

<script type="text/javascript">
// <![CDATA[
function bookmark(){
var title=document.title
var url=document.location.href
if (window.sidebar) window.sidebar.addPanel(title, url,"");
else if( window.opera && window.print ){
var mbm = document.createElement('a');
mbm.setAttribute('rel','sidebar');
mbm.setAttribute('href',url);
mbm.setAttribute('title',title);
mbm.click();}
else if( document.all ) window.external.AddFavorite( url, title);
}
// ]]>
</script>
<a href="javascript:bookmark()">加入收藏夹</a>