easyui tabs

$("#mainAccrdion table a").click(function () {
    $("#mainAccrdion table td").css("background-image", "none");
    $(this).parent().css("background-image", "url(/Content/img/home_index_td_backgroud.bmp)");
    var url = $(this).attr("url");
    var title = $(this).text();
    addPanel(title, url);
})


function addPanel(title, url) {
    if ($("#mainTabs").tabs("exists", title)) {
        $("#mainTabs").tabs("select", title)
        //当前tab  
        var current_tab = $(‘#mainTabs‘).tabs(‘getSelected‘);
        $(‘#mainTabs‘).tabs(‘update‘, {
            tab: current_tab,
            options: {
                content: ‘<iframe scrolling="auto" frameborder="0"  src="‘ + url + ‘" style="width:100%;height:100%;"></iframe>‘,
                //或者 href : ‘‘;  
            }
        });
    }
    else {
        $("#mainTabs").tabs("add", {
            title: title,
            closable: true,
            content: "<iframe id=‘winfrm‘ src=‘" + url + "‘ frameborder=‘0‘ scrolling=‘auto‘ style=‘width: 100%; height: 100%‘></iframe>"
        })
    }
}