var g_szOutputChar = "";
//var g_szLangType = "en-US";
var defaultTmpDoc = null;

var langCoolie = "en-US";
var oXmlDoc = null;
var curlang = "";
var Langver = "";
var fontLen = 13;
var reloadPage = false;

function loadLanguage()
{
  oXmlDoc = new ActiveXObject("Microsoft.XMLDOM");
  oXmlDoc.async = false;
  var bRet = oXmlDoc.load(langPath);
  if (bRet == false)
  {
    oXmlDoc.load("lang\\" + LangDefault+ ".xml");
  }
}

function ReadLangVer()
{
  var url = "/lang/lang_version?timeStamp=" + new Date().getTime();
  var val = "";
  xmlHttp = new XMLHttpRequest(); 
  xmlHttp.open("Get", url, false); 
  xmlHttp.setRequestHeader("Content-Type", "application/x-www-form-urlencoded"); 
  xmlHttp.send(null);
  
  if(xmlHttp.status == 200)
  {
    val = xmlHttp.responseText.split("\"");
    curlang = val[1];
    Langver = val[3];
  }
}

function makeRequest(url) {
  http_request = false;

  if (window.XMLHttpRequest) // Mozilla, Safari,...
  {
    http_request = new XMLHttpRequest();
    if (http_request.overrideMimeType) {
      http_request.overrideMimeType('text/xml');
    }
  }
  if (!http_request) {
    alert('Giving up :( Cannot create an XMLHTTP instance');
    return false;
  }
  http_request.open('GET', url, false);
  http_request.send(null); 
}

function loadLanguageNoneIE()
{
  //ReadLangVer();
  makeRequest(langPath + "?" + curlang + "&" + Langver );
  oXmlDoc = http_request.responseXML;
}

function getOs()
{ 
   var OsObject = ""; 
   if(navigator.userAgent.indexOf("MSIE")>0) {
      if(navigator.userAgent.indexOf("MSIE 9.0")>0)
        return "IE9";
      else 
        return "IE"; 
   }
   if(navigator.userAgent.indexOf("Android")>=0) {
        return "Android"; 
   }
   if(navigator.userAgent.indexOf("Firefox")>0){ 
        return "Firefox"; 
   } 
   if(navigator.userAgent.indexOf("Safari")>0) { 
        return "Safari"; 
   }
   if(navigator.userAgent.indexOf("Opera")>=0) {
        return "Opera"; 
   }
   if(navigator.userAgent.indexOf("BlackBerry")>=0) {
        return "BlackBerry"; 
   }
}


function CheckLang()
{
  langCoolie = getCookies("lang");
  if(langCoolie == undefined)
  {
    langCoolie = LangDefault;
  }

  if( langCoolie == "upload")
  {
    if(getOs().indexOf("IE") >= 0)
    {
      langPath = "lang_upload\\language.xml";
    }else{
      langPath = "lang_upload/language.xml";
    }
  }else{
    if(getOs().indexOf("IE") >= 0)
    {
      langPath = "lang\\"+langCoolie+".xml";
    }else{
      langPath = "lang/"+langCoolie+".xml";
    }
  }

  switch(langCoolie)
  {
    default:
    case "en-US":
      fontLen = 8; break;
    case "zh-TW":
    case "ja-JP":
    case "ko-KR":
    case "cs-CZ":
      fontLen = 20; break;
  }
}

function loadLangString(strtag,display)
{
    var os = getOs();

    if (os.indexOf("IE")>=0){

      if(oXmlDoc == null )
      {
        CheckLang();
        loadLanguage();
      }

  		g_szOutputChar = getData(oXmlDoc, "STRING/"+strtag);
  		if(g_szOutputChar=="")
  		{
        if(defaultTmpDoc == null)
        {
          defaultTmpDoc = new ActiveXObject("Microsoft.XMLDOM");
        }
        defaultTmpDoc.async = false;
        defaultTmpDoc.load("lang\\"+LangDefault+".xml");
        g_szOutputChar = getData(defaultTmpDoc, "STRING/"+strtag);
        if(g_szOutputChar=="")
          g_szOutputChar="Error";
  		}
  	}else{

        if(oXmlDoc == null )
        {
          CheckLang();
          loadLanguageNoneIE();
        }

      try{
        g_szOutputChar=oXmlDoc.getElementsByTagName(strtag)[0].firstChild.nodeValue; //getElementsByTagName(strtag)[0].childNodes[0].nodeValue;
      }
      catch(e){

      				try{
      				makeRequest("lang/"+LangDefault+".xml");
      				oXmlDoc = http_request.responseXML;	
    					g_szOutputChar=oXmlDoc.getElementsByTagName(strtag)[0].firstChild.nodeValue; //getElementsByTagName(strtag)[0].childNodes[0].nodeValue;
      				makeRequest(langPath);  //get user set language.
      				}
      				catch(e){
      				g_szOutputChar="Error";			//jack add for strtag is not in XML's Tag 
                    oXmlDoc = null;
      				}
      }
  	}
	if(display==true)
	    document.write(g_szOutputChar);
	return g_szOutputChar;
}

// This function is used to get the date of a XML element
function getData(oDoc, szXmlPath)
{
  var szRetval = "";
  var NodeObj=oDoc.selectSingleNode(szXmlPath);
  if (NodeObj)
    szRetval = NodeObj.text;
  return szRetval;
}

function getLanguage()
{ 
	lang=loadLangString("L_LanguagePack",false);
	return lang;
}
function setCookies(name,value)
{
  var Days = 30; //  cookie will keep 30 days.
  var exp  = new Date();    //new Date("December 31, 9998");
  exp.setTime(exp.getTime() + Days*24*60*60*1000);
  document.cookie = name + "="+ escape(value) +";expires="+ exp.toGMTString();
}
function getCookies(name)
{
  var arr = document.cookie.match(new RegExp("(^| )"+name+"=([^;]*)(;|$)"));
  if(arr != null) return unescape(arr[2]); return null;
}
function delCookies(name)
{
  var exp = new Date();
  exp.setTime(exp.getTime() - 1);
  var cval=getCookie(name);
  if(cval!=null) document.cookie=name +"="+cval+";expires="+exp.toGMTString();
} 
function getLangUicode()
{
  return loadLangString("L_LocalLanguage",false);
}

function ChangeLang(it)
{
  setCookies("lang",it.value);
  top.location.reload(true);
}

function GetLangList()
{
  var i = 0;
  var vXmlDoc = null, vString = "", vLang = "" , totalString = "", vFile = "";
  var ie8 = false, uplaod_Lang = "L_Current_Lang", upload_file = "L_Lang";
  if(getOs().indexOf("IE") >= 0)
  {
    vXmlDoc = new ActiveXObject("Microsoft.XMLDOM");
    vXmlDoc.async = false;
    vXmlDoc.load("lang\\lang_list.xml");
    if( getOs() == "IE")  //IE 8 only
    {
      ie8 = true;
    }
    for(i = 0;  i< 9; i++)
    {
      vString = getData(vXmlDoc, "STRING/L_"+i);
      vFile = getData(vXmlDoc, "STRING/L_"+i+"1");
      if(vString == "")
      {
        break;
      }
      totalString += vString + ":";
       
      EID("langSel").options[i]=new Option(vString,vFile);

      if( vFile == "ru-RU" && ie8 == true)
      {
        EID("langSel").style.width = "150px";
      }
    }
    vXmlDoc.async = false;
    vXmlDoc.load("lang_upload\\language.xml");

    vString = getData(vXmlDoc, "STRING/" + uplaod_Lang);
    if(vString != "")
    {
      EID("langSel").options[i]=new Option(vString,"upload");
      vString = getData(vXmlDoc, "STRING/" + upload_file);
    }

  }else{
    makeRequest("lang/lang_list.xml");
    vXmlDoc = http_request.responseXML;
    for(i = 0;  i< 9; i++)
    {
      try{
        vString = vXmlDoc.getElementsByTagName("L_" + i)[0].firstChild.nodeValue;
      }
      catch(e){
         break;
      }

      vFile = vXmlDoc.getElementsByTagName("L_" + i + "1")[0].firstChild.nodeValue;

      totalString += vString + ":";
      vLang = vXmlDoc.getElementsByTagName("L_" + i + "1")[0].firstChild.nodeValue + ":";
      EID("langSel").options[i]=new Option(vString,vFile);
    }

    makeRequest("lang_upload/language.xml");
    vXmlDoc = http_request.responseXML;
    
    try{
      vString = vXmlDoc.getElementsByTagName(uplaod_Lang)[0].firstChild.nodeValue;
      if(vString != "")
      {
        EID("langSel").options[i]=new Option(vString,"upload");
        vString = vXmlDoc.getElementsByTagName(upload_file)[0].firstChild.nodeValue;
      }
    }
    catch(e){
    }

  }

  if( vString != "" && langCoolie == "upload" )
  {
    switch(vString)
    {
      case "zh-TW":
      case "ja-JP":
      case "ko-KR":
      case "cs-CZ":
        fontLen = 20; break;
    }
  }
  return ;
}