JS手机访问PC端网站自动跳转到手机端网站

<script type="text/javascript">
//移动端url跳转，自定义部分开始
    function mobile_device_detect(url) {
        var thisOS = navigator.platform;
        var os = new Array("iPhone", "iPod", "iPad", "android", "Nokia", "SymbianOS", "Symbian", "Windows Phone", "Phone", "Linux armv71", "MAUI", "UNTRUSTED/1.0", "Windows CE", "BlackBerry", "IEMobile");
        for (var i = 0; i < os.length; i++) {
            if (thisOS.match(os[i])) {
                window.location = url;
            }

        }
        if (navigator.platform.indexOf('iPad') != -1) {
            window.location = url;
        }
        var check = navigator.appVersion;
        if (check.match(/linux/i)) {
            if (check.match(/mobile/i) || check.match(/X11/i)) {
                window.location = url;
            }
        }
        Array.prototype.in_array = function(e) {
            for (i = 0; i < this.length; i++) {
                if (this[i] == e) return true;
            }
            return false;
        }
    }
    mobile_device_detect("/m");       //       /m为手机端网址
</script>