JavaScript iframe 操作父窗口

<script type="text/javascript">
    (function($){
        $('a').each(function(i,o){
            $(o).click(function(){
                var link = $(o).attr('href');
                //alert(link);
                //$(window.parent.document).attr('href', link);
                //parent.location.replace(parent.location.href);
                parent.location.replace(link);
            });
        });
    })(jQuery)
</script>