easyui 添加新页面

<script>

    function createFrame(url) {
        var s = '<iframe name="mainFrame" scrolling="auto" frameborder="0"  src="' + url + '" style="width:100%;height:100%;"></iframe>';
        return s;
    }
    function addTab(subtitle, url) {
        var jq = top.jQuery;

        if (!jq('#tabs', top.document).tabs('exists', subtitle)) {
            jq('#tabs', top.document).tabs('add', {
                title: subtitle,
                content: createFrame(url),
                closable: true,
                width: $('#mainPanle').width() - 10,
                height: $('#mainPanle').height() - 26
            });
        } else {
            jq('#tabs', top.document).tabs('select', subtitle);
        }
    }

</script>