跳转手机端

<script type="text/javascript">
        <!-- 
                        //平台、设备和操作系统 
                        var system = { 
                            win: false, 
                            mac: false, 
                            xll: false, 
                            ipad:false 
                        }; 
                        //检测平台 
                        var p = navigator.platform; 
                        system.win = p.indexOf("Win") == 0; 
                        system.mac = p.indexOf("Mac") == 0; 
                        system.x11 = (p == "X11") || (p.indexOf("Linux") == 0); 
                        system.ipad = (navigator.userAgent.match(/iPad/i) != null)?true:false; 
                        //跳转语句，如果是手机访问就自动跳转到wap.baidu.com页面 
                        if (system.win || system.mac || system.xll||system.ipad) { 
                 
                        } else { 
                 
                            window.location.href = APP_ROOT+"/"+"wap"+"/"; 
                        } 
        -->
    </script>