function screen()
{
    if(screen.width < 641)
    {
       return true;
    }
    else
    {
       return false;
    }
}

function moviles()
{
    var agent = navigator.userAgent.toLowerCase();
    var iphone = (agent.indexOf('iphone')!=-1);
    var ipod = (agent.indexOf('ipod')!=-1);
    var android = (agent.indexOf('android')!=-1);
    var avantgo = (agent.indexOf('avantgo')!=-1);
    var blackberry = (agent.indexOf('blackberry')!=-1);
    var kindle = (agent.indexOf('kindle')!=-1);
    var lge = (agent.indexOf('lge')!=-1);
    var maemo = (agent.indexOf('maemo')!=-1);
    var midp = (agent.indexOf('midp')!=-1);
    var mmp = (agent.indexOf('mmp')!=-1);
    var mobile = (agent.indexOf('mobile')!=-1);
    var o2 = (agent.indexOf('o2')!=-1);
    var operamini = (agent.indexOf('opera mini')!=-1);
    var operamobi = (agent.indexOf('opera mobi')!=-1);
    var palmos = (agent.indexOf('palm os')!=-1);
    
    if ((iphone)||(ipod)||(android)||(avantgo)||(blackberry)||(kindle)||(lge)||(maemo)||(midp)||(mmp)||(mobile)||(o2)||(operamini)||(operamobi)||(palmos))
    {
        return true;
    }
    else
    {
        return false;
    }
}

var pagina="http://www.24kgoldexperience.com/movil/index.html"

if (moviles() || screen())
{
    location.href=pagina;
}