/* *******************************************
// Copyright 2010-2011, Anthony Hand
//
// File version date: July 15, 2011
//		Update: 
//		- Refactored the variable called maemoTablet. Its new name is the more generic deviceTablet.
//		- Created the variable deviceWebOShp for HP's line of WebOS devices starting with the TouchPad tablet.
//		- Created the DetectWebOSTablet() method for HP's line of WebOS tablets starting with the TouchPad tablet.
//		- Updated the DetectTierTablet() method to also search for WebOS tablets. 
//		- Updated the DetectMaemoTablet() method to disambiguate against WebOS tablets which share some signature traits. 
//
// File version date: June 04, 2011
//		Update: 
//		- Updated DetectTierIphone() for a BlackBerry issue. Now it checks for both BB WebKit *and* BB Touch.
//		- Updated DetectBlackBerryLow() to ensure that WebKit browsers aren't included here.
//
//
// LICENSE INFORMATION
// Licensed under the Apache License, Version 2.0 (the "License"); 
// you may not use this file except in compliance with the License. 
// You may obtain a copy of the License at 
//        http://www.apache.org/licenses/LICENSE-2.0 
// Unless required by applicable law or agreed to in writing, 
// software distributed under the License is distributed on an 
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, 
// either express or implied. See the License for the specific 
// language governing permissions and limitations under the License. 
//
//
// ABOUT THIS PROJECT
//   Project Owner: Anthony Hand
//   Email: anthony.hand@gmail.com
//   Web Site: http://www.mobileesp.com
//   Source Files: http://code.google.com/p/mobileesp/
//   
//   Versions of this code are available for:
//      PHP, JavaScript, Java, ASP.NET (C#), and Ruby
//
//
// WARNING: 
//   These JavaScript-based device detection features may ONLY work 
//   for the newest generation of smartphones, such as the iPhone, 
//   Android and Palm WebOS devices.
//   These device detection features may NOT work for older smartphones 
//   which had poor support for JavaScript, including 
//   older BlackBerry, PalmOS, and Windows Mobile devices. 
//   Additionally, because JavaScript support is extremely poor among 
//   'feature phones', these features may not work at all on such devices.
//   For better results, consider using a server-based version of this code, 
//   such as Java, APS.NET, PHP, or Ruby.
//
// *******************************************
*/

//Optional: Store values for quickly accessing same info multiple times.
//Note: These values are not set automatically.
//Stores whether the device is an iPhone or iPod Touch.
var isIphone = false; 
//Stores whether the device is an Android phone or multi-media player.
var isAndroidPhone = false; 
//Stores whether is the Tablet (HTML5-capable, larger screen) tier of devices.
var isTierTablet = false; 
//Stores whether is the iPhone tier of devices.
var isTierIphone = false; 
//Stores whether the device can probably support Rich CSS, but JavaScript support is not assumed. (e.g., newer BlackBerry, Windows Mobile)
var isTierRichCss = false; 
//Stores whether it is another mobile device, which cannot be assumed to support CSS or JS (eg, older BlackBerry, RAZR)
var isTierGenericMobile = false; 

//Initialize some initial string variables we'll look for later.
var engineWebKit = "webkit";
var deviceIphone = "iphone";
var deviceIpod = "ipod";
var deviceIpad = "ipad";
var deviceMacPpc = "macintosh"; //Used for disambiguation

var deviceAndroid = "android";
var deviceGoogleTV = "googletv";
var deviceXoom = "xoom"; //Motorola Xoom
var deviceHtcFlyer = "htc_flyer"; //HTC Flyer

var deviceNuvifone = "nuvifone"; //Garmin Nuvifone

var deviceSymbian = "symbian";
var deviceS60 = "series60";
var deviceS70 = "series70";
var deviceS80 = "series80";
var deviceS90 = "series90";

var deviceWinPhone7 = "windows phone os 7"; 
var deviceWinMob = "windows ce";
var deviceWindows = "windows";
var deviceIeMob = "iemobile";
var devicePpc = "ppc"; //Stands for PocketPC
var enginePie = "wm5 pie";  //An old Windows Mobile

var deviceBB = "blackberry";
var vndRIM = "vnd.rim"; //Detectable when BB devices emulate IE or Firefox
var deviceBBStorm = "blackberry95"; //Storm 1 and 2
var deviceBBBold = "blackberry97"; //Bold
var deviceBBTour = "blackberry96"; //Tour
var deviceBBCurve = "blackberry89"; //Curve 2
var deviceBBTorch = "blackberry 98"; //Torch
var deviceBBPlaybook = "playbook"; //PlayBook tablet

var devicePalm = "palm";
var deviceWebOS = "webos"; //For Palm's line of WebOS devices
var deviceWebOShp = "hpwos"; //For HP's line of WebOS devices

var engineBlazer = "blazer"; //Old Palm browser
var engineXiino = "xiino";

var deviceKindle = "kindle"; //Amazon Kindle, eInk one.

//Initialize variables for mobile-specific content.
var vndwap = "vnd.wap";
var wml = "wml";

//Initialize variables for random devices and mobile browsers.
//Some of these may not support JavaScript
var deviceTablet = "tablet"; //Generic term for slate and tablet devices
var deviceBrew = "brew";
var deviceDanger = "danger";
var deviceHiptop = "hiptop";
var devicePlaystation = "playstation";
var deviceNintendoDs = "nitro";
var deviceNintendo = "nintendo";
var deviceWii = "wii";
var deviceXbox = "xbox";
var deviceArchos = "archos";

var engineOpera = "opera"; //Popular browser
var engineNetfront = "netfront"; //Common embedded OS browser
var engineUpBrowser = "up.browser"; //common on some phones
var engineOpenWeb = "openweb"; //Transcoding by OpenWave server
var deviceMidp = "midp"; //a mobile Java technology
var uplink = "up.link";
var engineTelecaQ = 'teleca q'; //a modern feature phone browser

var devicePda = "pda";
var mini = "mini";  //Some mobile browsers put 'mini' in their names.
var mobile = "mobile"; //Some mobile browsers put 'mobile' in their user agent strings.
var mobi = "mobi"; //Some mobile browsers put 'mobi' in their user agent strings.

//Use Maemo, Tablet, and Linux to test for Nokia's Internet Tablets.
var maemo = "maemo";
var linux = "linux";
var qtembedded = "qt embedded"; //for Sony Mylo and others
var mylocom2 = "com2"; //for Sony Mylo also

//In some UserAgents, the only clue is the manufacturer.
var manuSonyEricsson = "sonyericsson";
var manuericsson = "ericsson";
var manuSamsung1 = "sec-sgh";
var manuSony = "sony";
var manuHtc = "htc"; //Popular Android and WinMo manufacturer

//In some UserAgents, the only clue is the operator.
var svcDocomo = "docomo";
var svcKddi = "kddi";
var svcVodafone = "vodafone";

//Disambiguation strings.
var disUpdate = "update"; //pda vs. update



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


//**************************
// Detects if the current device is an iPhone.
function DetectIphone()
{
   if (uagent.search(deviceIphone) > -1)
   {
      //The iPad and iPod Touch say they're an iPhone! So let's disambiguate.
      if (DetectIpad() || DetectIpod())
         return false;
      //Yay! It's an iPhone!
      else 
         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 iPad tablet.
function DetectIpad()
{
   if (uagent.search(deviceIpad) > -1  && DetectWebkit())
      return true;
   else
      return false;
}

//**************************
// Detects if the current device is an iPhone or iPod Touch.
function DetectIphoneOrIpod()
{
   //We repeat the searches here because some iPods 
   //  may report themselves as an iPhone, which is ok.
   if (uagent.search(deviceIphone) > -1 ||
       uagent.search(deviceIpod) > -1)
       return true;
    else
       return false;
}

//**************************
// Detects *any* iOS device: iPhone, iPod Touch, iPad.
function DetectIos()
{
   if (DetectIphoneOrIpod() || DetectIpad())
      return true;
   else
      return false;
}

//**************************
// Detects *any* Android OS-based device: phone, tablet, and multi-media player.
// Also detects Google TV.
function DetectAndroid()
{
   if ((uagent.search(deviceAndroid) > -1) || DetectGoogleTV())
      return true;
   //Special check for the HTC Flyer 7" tablet. It should report here.
   if (uagent.search(deviceHtcFlyer) > -1)
      return true;
   else
      return false;
}

//**************************
// Detects if the current device is a (small-ish) Android OS-based device
// used for calling and/or multi-media (like a Samsung Galaxy Player).
// Google says these devices will have 'Andro