var deviceIphone = "iphone";
var deviceIpod = "ipod";
var deviceS60 = "series60";
var deviceSymbian = "symbian";
var engineWebKit = "webkit";
var deviceAndroid = "android";
var deviceWinMob = "windows ce";
var deviceBB = "blackberry";
var devicePalm = "palm";

function isIphone()
{
   uagent = navigator.userAgent.toLowerCase();
   return uagent.search(deviceIphone) > -1;
}

function isIpod()
{
   uagent = navigator.userAgent.toLowerCase();
   return uagent.search(deviceIpod) > -1;
}

function isIPhoneOrIpod()
{
    uagent = navigator.userAgent.toLowerCase();
    return isIphone() || isIpod();
}


function isSymbianS60()
{
   uagent = navigator.userAgent.toLowerCase();
   return uagent.search(engineWebKit) > -1 && (uagent.search(deviceS60) > -1 || uagent.search(deviceSymbian) > -1)
}

function isAndroid()
{
   uagent = navigator.userAgent.toLowerCase();
   return uagent.search(deviceAndroid) > -1;     
}

function isWindowsMobile()
{
   uagent = navigator.userAgent.toLowerCase();
   return uagent.search(deviceWinMob) > -1;
}

function isBlackberry()
{
   uagent = navigator.userAgent.toLowerCase();
   return uagent.search(deviceBB) > -1;
}

function isPalmOS()
{
  uagent = navigator.userAgent.toLowerCase();
  return uagent.search(devicePalm) > -1;
}

function isMobile(){
   return isIPhoneOrIpod() || isSymbianS60() || isAndroid() || isWindowsMobile();
}

function isMobileAndNotIpod(){
   return isMobile() && !isIPhoneOrIpod();
}

function browserName(){
   return navigator.userAgent.toLowerCase();
}