var browserName_ = navigator.userAgent ;

    if(browserName_.indexOf("iPad")<&&browserName_.indexOf("Windows NT")<&&browserName_.indexOf("Macintosh")<){

            if(browserName_.indexOf("Linux")>){

                if(browserName_.indexOf("Mobile")>||browserName_.indexOf("U;")>){

                     location.href="http://xxx.xxx.com/";

                }

            }

            else{

                location.href="http://xxx.xxx.com/";

            }

    }