if (document.referrer != "http://www.gravityswitch.com/mobile/"){
	if ((navigator.userAgent.match(/iPhone/i)) || (navigator.userAgent.match(/iPod/i)) || (navigator.userAgent.match(/Android/i)) || (navigator.userAgent.match(/webOS/i))) {
   location.replace("http://www.gravityswitch.com/mobile/");}
}