// global variables used in the site
var g_country = "eng";
var hidePrintToolsIntervalId = 0;

//this function is not being used
//try to include the hide-print-tools.css instead
function hidePrintTools() {
	try
	{
		if (document.getElementById("printUtil"))
		{
			var printToolsContent = document.getElementById("printUtil").innerHTML;
			var newContent = printToolsContent.replace(/(<li class=add-to-basket>)(.*)(<\/li>)?/i, "");
			newContent = newContent.replace(/(<li class=manage-basket>)(.*)(<\/li>)?/i, "");
			newContent = newContent.replace(/(<li class=\"add-to-basket\">)(.*)(<\/li>)?/i, "");
			newContent = newContent.replace(/(<li class=\"manage-basket\">)(.*)(<\/li>)?/i, "");
			document.getElementById("printUtil").innerHTML = newContent;	
			clearInterval(hidePrintToolsIntervalId);
		}
	}
	catch (err)
	{
		//alert("@hidePrintTools Error");
	}
}

function showAudioGuide(audioFilePath)
{
	var audioPlayerFilePath = "/eng/images/audio-player.swf";
	var audioPlayerWidth = "250";
	var audioPlayerHeight = "23";
	var s = "<div class=\"audioguidetxt\">Hear Audio Guide</div><div id=\"audioguide\"></div>\n";
	s += "<script language=\"javascript\" type=\"text/javascript\">\n";
	s += "var fo = new FlashObject(\"" + audioPlayerFilePath + "\", \"fo\", \"" + audioPlayerWidth + "\", \"" + audioPlayerHeight + "\", \"8\", \"#ffffff\", true);\n";
	s += "fo.addParam(\"wmode\", \"transparent\");\n";
	s += "fo.addVariable(\"scriptPath\", \"" + audioFilePath + "\");\n";
	s += "fo.write(\"audioguide\");\n";
	s += "</script>\n";
	document.write(s);
}

function showShortAudioGuide(audioFilePath, id)
{
	var audioPlayerFilePath = "/eng/images/audio-player-short.swf";
	var audioPlayerWidth = "140";
	var audioPlayerHeight = "23";
	//var s = "<div class=\"audioguidetxt\">Hear Audio Guide</div><div id=\"audioguide\"></div>\n";
	var s = "<div id=\"audioguide"+id+"\"></div>\n";
	s += "<script language=\"javascript\" type=\"text/javascript\">\n";
	s += "var fo = new FlashObject(\"" + audioPlayerFilePath + "\", \"fo\", \"" + audioPlayerWidth + "\", \"" + audioPlayerHeight + "\", \"8\", \"#ffffff\", true);\n";
	s += "fo.addParam(\"wmode\", \"transparent\");\n";
	s += "fo.addVariable(\"scriptPath\", \"" + audioFilePath + "\");\n";
	s += "fo.write(\"audioguide"+id+"\");\n";
	s += "</script>\n";
	document.write(s);
}

function delegate( target, callback )
{
	var func;
	if(arguments.length > 2)
	{
		var _params = [];
		for(var n = 2; n < arguments.length; n++) _params.push(arguments[n]);
		func = function() { 
			var params = [];
			for(var n = 0; n < arguments.length; n++) params.push(arguments[n]);
			for(var n = 0; n < _params.length; n++) params.push(_params[n]);
			callback.apply(target,params); 
		}
	}
	else {
		func =  function() {
			callback.apply(target,arguments);
		}
	}
	
	return func;
}


function newwin(url, w, h) {
	/*
	var ie_fullscreen = "";
	if (detectBrowser() == "IE")
	{
		ie_fullscreen = "fullscreen=yes";
	}

	if (w<1)
	{
		w = screen.availWidth;
	}

	if (h<1)
	{
		h = screen.availHeight;
	}
	*/

	if (w<1)
	{
		var popWin = window.open(url, "popWin", "toolbar=yes,resizable=yes,menubar=yes,location=yes,scrollbars=yes,status=yes");
	}
	else
	{
		var popWin = window.open(url, "popWin", "width="+w+",height="+h+",toolbar=yes,resizable=yes,menubar=yes,location=yes,scrollbars=yes,status=yes");
	}

	popWin.focus();
}

function detectOS()
{
	if (navigator.userAgent.indexOf('Win') == -1) {
		OS = 'Macintosh';
	} else {
		OS = 'Windows';
	}
	return OS;
}

function detectBrowser()
{
	if (navigator.appName.indexOf('Netscape') == -1) {
		browser = 'IE';
	} else {
		browser = 'Netscape';
	}
	return browser;
}



/*
	Online survey related
*/
var expDays = 30;
var pageCount = 2;
var page = "http://210.245.160.228/questionnaire/index_en.html";
var windowprops = "width=650,height=350,location=no,toolbar=no,menubar=no,scrollbars=yes,resizable=yes";

function GetCookie(name)
{
	var arg = name + "=";
	var alen = arg.length;
	var clen = document.cookie.length;
	var i = 0;
	while (i < clen)
	{
		var j = i + alen;
		if (document.cookie.substring(i, j) == arg)
			return getCookieVal (j);
		i = document.cookie.indexOf(" ", i) + 1;
		if (i == 0) break;
	}
	return null;
}

function SetCookie(name, value)
{
	var argv = SetCookie.arguments;
	var argc = SetCookie.arguments.length;
	var expires = (argc > 2) ? argv[2] : null;
	var path = (argc > 3) ? argv[3] : null;
	var domain = (argc > 4) ? argv[4] : null;
	var secure = (argc > 5) ? argv[5] : false;
	document.cookie = name + "=" + escape (value) +
		((expires == null) ? "" : ("; expires=" + expires.toGMTString())) +
		((path == null) ? "" : ("; path=" + path)) +
		((domain == null) ? "" : ("; domain=" + domain)) +
		((secure == true) ? "; secure" : "");
}

function DeleteCookie(name)
{
	var exp = new Date();
	exp.setTime (exp.getTime() - 1);
	var cval = GetCookie (name);
	document.cookie = name + "=" + cval + "; expires=" + exp.toGMTString();
}

function getCookieVal(offset)
{
	var endstr = document.cookie.indexOf (";", offset);
	if (endstr == -1)
		endstr = document.cookie.length;
	return unescape(document.cookie.substring(offset, endstr));
}

function initSurvey()
{
	var exp = new Date();
	exp.setTime(exp.getTime() + (expDays*24*60*60*1000));

	var count = GetCookie('count');
	if (count == null) count = 0;
	//alert(count);
	count++;
	//window.status="count:"+count;
	SetCookie('count', count, exp, "/");
	if (count == pageCount)
	{
		var surveyWin = window.open(page, "surveyWin", windowprops);
		surveyWin.focus();
	}
}

function onlineSurvey()
{
}

//initSurvey();

/*change fontsize*/

//Specify spectrum of different font sizes:
var szs = new Array('75%', '100%', '125%');
//var szs = new Array('x-small', 'small', 'medium');
//var szs = new Array('1em', '1.05em', '1.10em', '1.15em');
var startSz = sz = szs.length;

function getFontSize()
{	
	if (getCookie('fontSize') == null)
	{		
		startSz = 1;
	}
	else
	{ 
		startSz = getCookie('fontSize');
		if (startSz == "NaN")	startSz = 1;
	}	
	changeFontSize(startSz, true);
}

function changeFontSize(inc, start)
{
	var d = document;
	
	if (!d.getElementById) return;
	var cEl = null,sz = eval(startSz),i,j,cTags;
	
	sz = inc;
	
	cEl = d.getElementsByTagName('body')[0];
	cEl.style.fontSize = szs[ sz ];	
	
	//Highlight Btn
	var topTools = d.getElementById('fontSelect').getElementsByTagName('a');
	for (var i=0; i<topTools.length; i++)
	{
		topTools[i].className = topTools[i].className.replace('active ', '');
		topTools[i].clicked = false;
	}
	topTools[sz].className = topTools[sz].className.replace('', 'active ');
	topTools[sz].clicked = true;
	
	setCookie("fontSize", sz, nd, cpath, cdomain);
}

var nd= new Date();
nd.setTime(nd.getTime()+(60*24*60*60*1000));
var cdomain = (location.domain) ? location.domain : null;
var cpath = "/";

function setCookie(name, value, expires, path, domain, secure)
{
  var curCookie = name + "=" + escape(value) +
		((expires) ? "; expires=" + expires.toGMTString() : "") +
		((path) ? "; path=" + path : "") +
		((domain) ? "; domain=" + domain : "") +
		((secure) ? "; secure" : "");

  d.cookie = curCookie;
}

function getCookie(name)
{
	if (d.cookie.indexOf(name) < 0)
	{		
		return null;
	}
	else
	{	
		var startStr = d.cookie.indexOf(name) + name.length + 1;
		var endStr = d.cookie.indexOf(";", startStr);
		if (endStr == -1)	endStr = d.cookie.length;
		return unescape(d.cookie.substring(startStr, endStr));
	}
}
/*end of change fontsize*/

function startFading(el)
{
//return;
  if (el.fadinTimeout)	clearTimeout(el.fadinTimeout);
  //el.style.visibility = 'visible';
  //el.style.zIndex = 2;
  setOpacity(el, 0);
  fadeImage(el, 0);
}

function fadeImage(el, currentOpacity)
{
  currentOpacity += 1;

  if (currentOpacity > 100)
  {
    setOpacity(el, 100);
    //el.style.zIndex = 1;
	if (el.fadinTimeout)	clearTimeout(el.fadinTimeout);
  }
  else
  {
    setOpacity(el, currentOpacity);
    el.fadinTimeout = setTimeout(function() { fadeImage(el, currentOpacity); }, 10);
  }
}

function startFadingOut(el)
{
  if (el.fadinTimeout)	clearTimeout(el.fadinTimeout);
  //el.style.visibility = 'visible';
  //el.style.zIndex = 2;
  setOpacity(el, 100);
  fadeImageOut(el, 100);
}

function fadeImageOut(el, currentOpacity)
{
  currentOpacity -= 1;

  if (currentOpacity <= 0)
  {
    setOpacity(el, 0);
    //el.style.zIndex = 1;
	el.style.display = 'none';
	if (el.fadinTimeout)	clearTimeout(el.fadinTimeout);
  }
  else
  {
    setOpacity(el, currentOpacity);
    el.fadinTimeout = setTimeout(function() { fadeImageOut(el, currentOpacity); }, 10);
  }
}

function setOpacity(el, opacity)
{
	opacity /= 100;
	el.style.opacity = opacity;
	el.style.MozOpacity = opacity;
	el.style.filter = "alpha(opacity=" + (opacity*100) + ")";
}

var setMenu = 
{
	init:	function (obj)

	{
		setMenu.index = 0;
		this.container = document.getElementById(obj);
		var img = this.container.getElementsByTagName('img');
		setMenu.total = img.length;
		this.loopStart();
		setMenu.changeA(img[0], true);
	},
	
	changeA:	function (obj, fadeIn)
	{
		//alert(d.getElementById(obj));
		for (var i=0; i<setMenu.total; i++) {
			setTimeout(function(){if (this.container)	this.container.getElementsByTagName('img')[i].style.display = 'none';}, 400);
		}
		obj.style.display = 'block';
		if (obj.parentNode)	obj.parentNode.appendChild(obj);
		if (fadeIn)	startFading(obj);
		//setMenu.index++;
		if (setMenu.index >= setMenu.total)  {setMenu.index = 0;}
		setMenu.img = this.container.getElementsByTagName('img')[setMenu.index];
	},

	loopStart:	function ()
	{
		loop = true;
		setMenu.setTime();
	},
	
	setTime:	function()
	{
		
		//clearInterval(timeOut);
		
		var timeCompleted = function()
		{
			setMenu.changeA(setMenu.img, true);
			
		}
		timeOut = setInterval(timeCompleted, 6000);
	}

}

function init()
{
	if (document.getElementById('loopImg'))	setMenu.init('loopImg');
	//if (d.getElementById('loopImg'))	alert(123);
}


 
// Google Analytics tracking 
  var _gaq = _gaq || [];

  _gaq.push(['_setAccount', 'UA-17665629-1']);

  _gaq.push(['_trackPageview']);

 

  (function() {

    var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true;

    ga.src = ('https:' == document.location.protocol ? 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js';

    var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s);

  })();


function checkPopSurvery(){
		var bdbgDiv = document.createElement("div");
        bdbgDiv.id = "backdrop_bg";
		
		var popbgDiv = document.createElement("div");
        popbgDiv.id = "popup_bg";
		
		var popmsgDiv = document.createElement("div");
        popmsgDiv.id = "popup_msg";
        popmsgDiv.innerHTML = "<b>Dear Visitor,</b><br>Thanks for visiting our website. We also have a short survey we hope you can help us with. It will only take a few minutes of your time. Your answers will help us improve the DiscoverHongKong.com user experience and should make your next visit even better. Rest assured your information will be treated with the strictest of confidentiality!";
		
		var btnansDiv = document.createElement("div");
        btnansDiv.className = "btn_answer";
        btnansDiv.innerHTML = "<a href='http://survey.hktb.com/public/survey.php?name=DHK_com_eng' target='_blank'></a>";
		
		var btnyetDiv = document.createElement("div");
        btnyetDiv.className = "btn_notyet";
        btnyetDiv.innerHTML = "<a href='javascript:closePopWin();' target=''></a>";
		
		
		var btncleDiv = document.createElement("div");
        btncleDiv.className = "btn_close";
        btncleDiv.innerHTML = "<a href='javascript:closePopWin();' target=''></a>";
		
		if (window.location.href.indexOf("eng/index")>0){
			document.getElementById("mainContainer").appendChild(popbgDiv);
			document.getElementById("mainContainer").appendChild(popmsgDiv);
			document.getElementById("popup_msg").appendChild(btnansDiv);
			document.getElementById("popup_msg").appendChild(btnyetDiv);
			document.getElementById("popup_msg").appendChild(btncleDiv);
		} else{
			document.getElementById("mainCol").appendChild(bdbgDiv);
			document.getElementById("mainCol").appendChild(popbgDiv);
			document.getElementById("mainCol").appendChild(popmsgDiv);
			document.getElementById("popup_msg").appendChild(btnansDiv);
			document.getElementById("popup_msg").appendChild(btnyetDiv);
			document.getElementById("popup_msg").appendChild(btncleDiv);
		}
}


function closePopWin(){
	if (window.location.href.indexOf("eng/index")>0){
		var d = document.getElementById('popup_bg');
		document.getElementById("mainContainer").removeChild(d);

		d = document.getElementById('popup_msg');
		document.getElementById("mainContainer").removeChild(d);
	} else{
		var d = document.getElementById('popup_bg');
		document.getElementById("mainCol").removeChild(d);

		d = document.getElementById('popup_msg');
		document.getElementById("mainCol").removeChild(d);

		d = document.getElementById('backdrop_bg');
		document.getElementById("mainCol").removeChild(d);
	}	
}

/******************** Cookie function ******************************/

function createCookie(name,value,days) {
	if (days) {
		var date = new Date();
		date.setTime(date.getTime()+(days*60*60*1000));
		var expires = "; expires="+date.toGMTString();
	}
	else var expires = "";
	document.cookie = name+"="+value+expires+"; path=/";
}

function readCookie(name) {
	var nameEQ = name + "=";
	var ca = document.cookie.split(';');
	for(var i=0;i < ca.length;i++) {
		var c = ca[i];
		while (c.charAt(0)==' ') c = c.substring(1,c.length);
		if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
	}
	return null;
}

function eraseCookie(name) {
	createCookie(name,"",-1);
}

/************************ End Cookie function ***************************/

function checksession(){
	if (readCookie("popup_session_en") == null)
	{
		createCookie("popup_session_en", "1", 7);
		checkPopSurvery();
	}
}
//var t=setTimeout("checksession()",240000);