JsTree CheckBox JQuery Select

function get_authchecked()
{
        var authchecked = "";
        $(".jstree-checked").each(function(i, element){
                authchecked = authchecked + $(element).attr("id") + "|";  //jQuery代碼獲得以|隔開的checkbox被選中的項的ID串
        });

        return authchecked;
}