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";

//Initialize our user agent string to lower case.
var uagent = navigator.userAgent.toLowerCase();

//**************************
// Detects if the current device is an iPhone.
function DetectIphone()
{
   if (uagent.search(deviceIphone) > -1)
      return true;
   else
      return false;
}

//**************************
// Detects if the current device is an iPod Touch.
function DetectIpod()
{
   if (uagent.search(deviceIpod) > -1)
      return true;
   else
      return false;
}

//**************************
// Detects if the current device is an iPhone or iPod Touch.
function DetectIphoneOrIpod()
{
    if (DetectIphone())
       return true;
    else if (DetectIpod())
       return true;
    else
       return false;
}



//**************************
// Detects if the current browser is the S60 Open Source Browser.
// Screen out older devices and the old WML browser.
function DetectS60OssBrowser()
{
   if (uagent.search(engineWebKit) > -1)
   {
     if ((uagent.search(deviceS60) > -1 || 
          uagent.search(deviceSymbian) > -1))
        return true;
     else
        return false;
   }
   else
      return false;
}


//**************************
// Detects if the current device is an Android OS-based device.
function DetectAndroid()
{
   if (uagent.search(deviceAndroid) > -1)
      return true;
   else
      return false;
}


//**************************
// Detects if the current device is an Android OS-based device and
//   the browser is based on WebKit.
function DetectAndroidWebKit()
{
   if (DetectAndroid())
   {
     if (DetectWebkit())
        return true;
     else
        return false;
   }
   else
      return false;
}

//**************************
// Detects if the current browser is a Windows Mobile device.
function DetectWindowsMobile()
{
   if (uagent.search(deviceWinMob) > -1)
      return true;
   else
      return false;
}



//**************************
// Detects if the current browser is a BlackBerry of some sort.
function DetectBlackBerry()
{
   if (uagent.search(deviceBB) > -1)
      return true;
   else
      return false;
}

//**************************
// Detects if the current browser is on a PalmOS device.
function DetectPalmOS()
{
   if (uagent.search(devicePalm) > -1)
      return true;
   else
      return false;
}

function DetectNokia(){
    if (/(Series60|Nokia|SymbianOS)/i.test(navigator.userAgent)){
        return true;
    } else {
        return false;
    }
}

function DetectSamsung(){
    if (/(SAMSUNG)/i.test(navigator.userAgent)){
        return true;
    } else {
        return false;
    }
}


function DetectMobileDevice()
{
	if (DetectIphoneOrIpod() == true){
		return true;
	}
	if (DetectS60OssBrowser() == true){
		return true;
	}
	if (DetectAndroidWebKit() == true){
		return true;
	}
	if (DetectWindowsMobile() == true){
		return true;
	}
	if (DetectBlackBerry() == true){
		return true;
	}
	if (DetectPalmOS() == true){
		return true;
	}
	if (DetectNokia() == true){
		return true;
	}
	if (DetectSamsung() == true){
		return true;
	}
	
	// else no mobile //
	return false;
}