function fit() {

        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";

        if (bIsIpad || bIsIphoneOs || bIsMidp || bIsUc7 || bIsUc || bIsAndroid || bIsCE || bIsWM) {

           window.location.href= "手機網址";

        } else {
           window.location.href= "電腦網址";          

          }
        }
        fit();