由於DOM物件是從上到下是順序載入的，使用時請放在body內下方處。

<script type="text/javascript">
    window.onload = browserRedirect();
    function browserRedirect() {//判斷客戶端型別
var sUserAgent = navigator.userAgent.toLowerCase();
        var bIsIpad = sUserAgent.match(/ipad/i) == "ipad";
        var bIsIphoneOs = sUserAgent.match
 
(/iphone os/i) == "iphone os";
        var bIsMidp = sUserAgent.match(/midp/i) == "midp";
        var bIsUc7 = sUserAgent.match(/rv:1.2.3.4/i) == "rv:1.2.3.4";
        var bIsUc = sUserAgent.match(/ucweb/i) == "ucweb";
        var bIsAndroid = sUserAgent.match(/android/i) == "android";
        var bIsCE = sUserAgent
 
.match(/windows ce/i) == "windows ce";
        var bIsWM = sUserAgent.match(/windows mobile/i) == "windows mobile";
        var bIsWeChat = sUserAgent.match(/MicroMessenger/i) == "micromessenger";//微信端
if (bIsIpad || bIsIphoneOs || bIsMidp || bIsUc7 || bIsUc || bIsAndroid || bIsCE || bIsWM || bIsWeChat) {
            var 
 
menu = document.getElementById("menu");
            menu.style.display = "none";
        } else {
            var menuMobile =document.getElementById("menuMobile");
            menuMobile.style.display = "none";
        }
    }
</script>