var GlobalSurvey = {
	/* ID of the Website profile */
	siteId: null,
	sessionId: null,
	langId: null,
	visitTime: 0,
	answered: false,
	brandName: null,
	refreshUrl: null,
	respondUrl: null,
	cancelUrl: null,
	questionId: null,
	questionText: null,
	langTexts: {
		en_UK: {
			questionIntro: 'May we ask you one question about [brand_name]?',
			question0: 'Would you recommend [brand_name] to your family or a friend?',
			question1: 'Would you recommend this website to your family or a friend?',
			yes: 'Yes',
			no: 'No',
			rating0: 'Certainly Not!',
			rating1: 'Yes, certainly!',
			thanks: 'We thank you for your time!'
		},
		en_US: {
			questionIntro: 'May we ask you one question about [brand_name]?',
			question0: 'Would you recommend [brand_name] to your family or a friend?',
			question1: 'Would you recommend this website to your family or a friend?',
			yes: 'Yes',
			no: 'No',
			rating0: 'Certainly Not!',
			rating1: 'Yes, certainly!',
			thanks: 'We thank you for your time!'
		},
		es_AR: {
			questionIntro: '¿Podemos hacerle una pregunta acerca de [brand_name]?',
			question0: '¿Recomendaría [brand_name] a su familia o a un amigo?',
			question1: '¿Recomendaría este sitio Web a su familia o a un amigo?',
			yes: 'Sí',
			no: 'No',
			rating0: '¡Desde luego que no!',
			rating1: '¡Sí, absolutamente!',
			thanks: '¡Le damos las gracias por el tiempo que nos ha dedicado!'
		},
		es_ES: {
			questionIntro: '¿Podemos hacerle una pregunta acerca de [brand_name]?',
			question0: '¿Recomendaría [brand_name] a su familia o a un amigo?',
			question1: '¿Recomendaría este sitio Web a su familia o a un amigo?',
			yes: 'Sí',
			no: 'No',
			rating0: '¡Desde luego que no!',
			rating1: '¡Sí, absolutamente!',
			thanks: '¡Le damos las gracias por el tiempo que nos ha dedicado!'
		},
		nl_NL: {
			questionIntro: 'Mogen wij u een vraag stellen over [brand_name]?',
			question0: 'Zou u [brand_name] aanraden aan uw familie of een vriend(in)?',
			question1: 'Zou u deze website aanraden aan uw familie of een vriend(in)?',
			yes: 'Ja',
			no: 'Neen',
			rating0: 'Zeker niet!',
			rating1: 'Ja, zeker!',
			thanks: 'Wij danken u voor uw tijd!'
		},
		pt_PT: {
			questionIntro: 'Posso colocar-lhe uma questão sobre [brand_name]?',
			question0: 'Recomendaria [brand_name] à sua família ou amigos?',
			question1: 'Recomendaria este sítio web à sua família ou a um amigo?',
			yes: 'Sim',
			no: 'Não',
			rating0: 'De modo algum!',
			rating1: 'Sem dúvida!',
			thanks: 'Vai ser automaticamente redireccionado para o sítio web'
		},
		cs_CZ: {
			questionIntro: 'Mùžeme Vám položit jednu otázku na [brand_name]?',
			question0: 'Doporuèil/a byste [brand_name] svému pøíbuznému nebo kamarádovi?',
			question1: 'Doporučili byste tuto webovou stránku své rodině nebo přátelům?',
			yes: 'Ano',
			no: 'Ne',
			rating0: 'V žádném pøípadì!',
			rating1: 'Jasnì!',
			thanks: 'Dìkujeme za Váš èas!'
		},
		ru_RU: {
			questionIntro: 'Могли бы мы задать Вам один вопрос по поводу [brand_name]?',
			question0: 'Вы будете рекомендовать [brand_name] кому-либо в Вашей семье или другу?',
			question1: 'Вы бы порекомендовали посетить этот веб-сайт членам Вашей семьи или друзьям?',
			yes: 'Да',
			no: 'Нет',
			rating0: 'Конечно, нет!',
			rating1: 'Да, конечно!',
			thanks: 'Благодарим Вас за уделенное нам время!'
		},
		fr_FR: {
			questionIntro: 'Pouvons-nous vous poser une question à propos de [brand_name]?',
			question0: 'Recommanderiez-vous [brand_name] aux membres de votre famille ou à un ami?',
			question1: 'Recommanderiez-vous ce site Internet à un membre de votre famille ou à un ami?',
			yes: 'Oui',
			no: 'Non',
			rating0: 'Absolument pas!',
			rating1: 'Absolument!',
			thanks: 'Nous vous remercions de nous avoir consacré ces quelques minutes!'
		},
		uk_UA: {
			questionIntro: 'Чи можна Вам поставити одне питання про [brand_name]?',
			question0: 'Чи порекомендували б Ви [brand_name] сім\'ї чи друзям?',
			question1: 'Ви би порадили відвідати цей веб-сайт членам Вашої родини або друзям?',
			yes: 'Так',
			no: 'Ні',
			rating0: 'Безперечно ні!',
			rating1: 'Так, безперечно!',
			thanks: 'Дякуємо Вам!'
		}
	},

	containerHeight: 100,
	container1Pos: -30,
	container2Pos: 0,
	ratingWidth: 400,
	ratingOffsetX: 20,

	/*DOM elements*/
	container_dom: null,

	positionWindow : {},
	ieFixTimer: null,
	isIEold: null,

	position : 0,
	timers: {},

	/*--------------*/
	/*Ajax functions*/
	/*--------------*/
	sendResponse: function(url, url_params) {
		document.getElementById("GlobalSurvey_respondImage").src = url +	url_params + '/break_cache:'+Math.random();
		document.getElementById("GlobalSurvey_respondImage").style.display = 'block';
	},
	sendRequest: function(url) {
		document.getElementById("GlobalSurvey_refreshImage").src = url+'/break_cache:'+Math.random()+'/?referrer='+encodeURIComponent(document.referrer);
		document.getElementById("GlobalSurvey_refreshImage").style.display = 'block';
	},

	initQuestionTexts: function() {
		// randomly select question 1 or 2
		this.questionId = Math.random() > 0.5 ? 1 : 0;
		var langTexts = this.langTexts[this.langId];
		if (typeof langTexts == 'undefined') {
			// fall back to english default
			langTexts = this.langTexts['en_UK'];
		}
		this.questionIntroText = langTexts['questionIntro'];
		this.questionText = langTexts['question'+this.questionId];

		this.questionIntroText = this.questionIntroText.replace('[brand_name]', this.brandName);
		this.questionText = this.questionText.replace('[brand_name]', this.brandName);

		this.translatedText = langTexts;
	},

	initConfig: function() {
		if (typeof GlobalSurvey_config_containerHeight != 'undefined') {
			this.containerHeight = GlobalSurvey_config_containerHeight;
		}
		if (typeof GlobalSurvey_config_container1Pos != 'undefined') {
			this.containerHeight = GlobalSurvey_config_container1Pos;
		}
		if (typeof GlobalSurvey_config_container2Pos != 'undefined') {
			this.containerHeight = GlobalSurvey_config_container2Pos;
		}
	},

	/*----------------------------*/
	/*Functions of general control*/
	/*----------------------------*/
	init: function(siteId, sessionId, langId, options) {
		this.siteId = siteId;
		this.sessionId = sessionId;
		this.langId = langId;
		this.brandName = options.brandName;
		this.refreshUrl = options.refreshUrl;
		this.respondUrl = options.respondUrl;
		this.cancelUrl = options.cancelUrl;
		this.visitTime = options.visitTime;
		this.answered = options.answered;
		this.test = options.test;
		this.no_show = options.no_show;

		this.initConfig();

		this.isIEold = this.detectIEold();
		this.loadStyleElement();

		this.initQuestionTexts();

		if(window.addEventListener){
			window.addEventListener("load", function(){GlobalSurvey.loadWebElements.call(GlobalSurvey)}, false);
		}else{
			window.attachEvent("onload", function(){GlobalSurvey.loadWebElements.call(GlobalSurvey)});
		};

		
	},

	update: function(){
		this.sendRequest(this.refreshUrl);
	},

	startSurveyQuestionTimer: function(){
		//percentages:
 		var percentages = [100, 30, 5];
		//middle of time:
		var times = [0, 1, 4];
		var timeShow = this.getShowTime(percentages, times);
		var temp1 = window.setTimeout(function(){GlobalSurvey.showIntroQuestion.call(GlobalSurvey)}, this.test ? 0 : timeShow)
	},

	lineal: function(x, b, c){
		for(i = 1; i < b.length; i++){
			if(x >= b[i]){
				return (b[i - 1] - x)*(c[i]/(b[i - 1] - b[i])) + (x - b[i])*(c[i - 1]/(b[i - 1] - b[i]));
			};
		};
		return c[c.length - 1];
	},

	getShowTime: function(b, c){
		var x = Math.random() * 100;
		var result = this.lineal(x, b, c);
		if(Math.random() > 0.5){
			result = (-1)*result + (c[c.length - 1] * 2);
		};

		// convert to secs:
		result = result * 60;
		
		result = Math.max(result - this.visitTime, 0);
		// alert(result + ' ' + this.visitTime);
		
		// convert to msec:
		result = Math.round(result * 1000);
		return (result);
	},

	/*-----------------------------------------*/
	/*Functions to load the HTML STYLE elements*/
	/*-----------------------------------------*/

	loadWebElements: function(){
		this.container_dom = document.createElement("DIV");
		this.container_dom.id = "GlobalSurvey_container";
		this.loadDOMElements();
		
		// only show question if not already answered
		// also don't show question if "no_show" parameter was passed
		if (!this.answered && !this.no_show) {
			this.startSurveyQuestionTimer();
		}
	},

	loadStyleElement: function(){
		var webStyle = 
		'body' +
		'{' +
		 'margin:0;' +
		 'padding:0;' +
		'}' +
		'#GlobalSurvey_container' +
		'{' +
		 'display:none;' +
		 'position:relative;' +
		 'height:'+this.containerHeight+'px;' +
		 'margin-top:-'+this.containerHeight+'px;' +
		 'left:0px;' +
		 'padding:0;' +
		 'margin:0;' +
		 'font-size:14px;' +
		 'color:#000;' +
		 'background:#fff;' +
		'}' +
		'#GlobalSurvey_subContainer1' +
		'{' +
		 'padding-top: 50px;' +
		 'padding-left: 20px;' +
		'}' +
		'#GlobalSurvey_subContainer2' +
		'{' +
		 'padding-top: 0px;' +
		 'padding-left: 20px;' +
		'}' +
		'#GlobalSurvey_subContainer3' +
		'{' +
		 'padding-top: 30px;' +
		 'padding-left: 20px;' +
		'}' +
		'#GlobalSurvey_container p' +
		'{' +
		 'padding: 6px 0;' +
		 'margin:0;' +
		'}' +
		'#GlobalSurvey_container a' +
		'{' +
		 'color: #000;' +
		 'font-weight: bold;' +
		 'text-decoration: underline;' +
		'}' +
		'#GlobalSurvey_surveyQuestion' +
		'{' + 
		 'font-weight: bold;' +
		'}' +
		'#GlobalSurvey_answerRating' +
		'{' +
		 'position:relative;' +
		 'background: transparent url(http://survey.abinbev.tcsondemand.com/img/survey/numbers.png) no-repeat top left;' +
		 'width: '+this.ratingWidth+'px;' +
		 'height: 60px;' +
		 'cursor: pointer;' +
		'}' +
		'#GlobalSurvey_rating0' +
		'{' +
		 'position: absolute;' +
		 'top: 38px;' +
		 'width:100%;' +
		 'text-align: left;' +
		 'font-weight: normal;' +
		 'z-index: 200;' +
		'}' +
		'#GlobalSurvey_rating1' +
		'{' +
		 'position: absolute;' +
		 'top: 38px;' +
		 'width:100%;' +
		 'text-align: right;' +
		 'font-weight: normal;' +
		 'z-index: 200;' +
		'}' +
		'#GlobalSurvey_ratingColorbar' +
		'{' +
		 'display: none;' + 
		 'position: absolute;' + 
		 'height: 40px;' + 
		 'width: 0px;' + 
		 'background: #F5C523;' +
		'}' +
		'.GlobalSurvey_bottom' +
		'{' +
		 'position:absolute;' +
		 'width:100%;' +
		 'bottom:0px;' +
		 'left:0px;' +
		 'height:5px;' +
		 'overflow:hidden;' +
		 'padding:0;' +
		 'border:0;' +
		 'margin:0;' +
		 'background:#dddddd;' +
		 'font-size:0;' +
		 'line-height:0;' +
		 'z-index:1;' +
		'}';

		document.write("<style type=\"text/css\">" + webStyle + "</style>");
	},

	loadDOMElements: function(){

		this.container_dom.innerHTML = 
			'<div id="GlobalSurvey_containerInner">' +
				'<div id="GlobalSurvey_subContainer1">' +
					'<div id="GlobalSurvey_introQuestion">' +
						'<p>'+this.questionIntroText + ' <a id="GlobalSurvey_yesBtn1" href="#nogo">'+this.translatedText.yes+'</a> - <a id="GlobalSurvey_noBtn1" href="#nogo">'+this.translatedText.no+'</a></p>' +
					'</div>' +
				'</div>' +
			'</div>' +
			'<div class="GlobalSurvey_bottom"></div>' +
			'<img id="GlobalSurvey_refreshImage" src="http://survey.abinbev.tcsondemand.com/img/survey/blank.gif" width="1" style="display:none"/>' +
			'<img id="GlobalSurvey_respondImage" src="http://survey.abinbev.tcsondemand.com/img/survey/blank.gif" width="1" style="display:none"/>';

		document.body.insertBefore(this.container_dom, document.body.firstChild);

		this.container_dom = document.getElementById("GlobalSurvey_container");
		this.containerInner_dom = document.getElementById("GlobalSurvey_containerInner");

		var yesBtn1_dom = document.getElementById("GlobalSurvey_yesBtn1");
		var noBtn1_dom = document.getElementById("GlobalSurvey_noBtn1");

		noBtn1_dom.onclick = function() {
			GlobalSurvey.sendResponse(GlobalSurvey.cancelUrl, '');
			window.clearInterval(GlobalSurvey.ieFixTimer);
			GlobalSurvey.timers.slideUpIntroQuestion = window.setInterval(function(){GlobalSurvey.slideUpIntroQuestion.call(GlobalSurvey)}, 20);
			return false;
		};

		yesBtn1_dom.onclick = function() {
			window.clearInterval(GlobalSurvey.ieFixTimer);
			GlobalSurvey.initSurveyQuestion();
			GlobalSurvey.timers.slideDownSurveyQuestion = window.setInterval(function(){GlobalSurvey.slideDownSurveyQuestion.call(GlobalSurvey)}, 20);
			return false;
		};

		var updateTimer = window.setInterval(function(){GlobalSurvey.update.call(GlobalSurvey)}, 15000);
	},

	/*----------------------------------*/
	/*Functions to animate the questions*/
	/*----------------------------------*/
	fixIEoldScroll: function(metodo){
		if(document.documentElement.scrollLeft !== undefined){
			this.positionWindow.y = document.documentElement.scrollTop;
			this.positionWindow.x = document.documentElement.scrollLeft;
		}else{
			this.positionWindow.y = document.body.scrollTop;
			this.positionWindow.x = document.body.scrollLeft;
		};
		if(metodo == 'get'){
			return this.positionWindow;
		};
		this.container_dom.style.top = this.positionWindow.y + "px";
		this.container_dom.style.left = this.positionWindow.x + "px";
	},

	detectIEold: function(){
		if(window.opera){return false};
		if(window.navigator.appName == 'Microsoft Internet Explorer'){
			var appVersion_str = window.navigator.appVersion;
			var reg = new RegExp("MSIE ([0-9])?");
			var result = reg.exec(appVersion_str);
			var version_str = result[1];
			if ((Number(version_str) <= 6)){
				return true;
			};
		};
		return false;
	},

	slideDownIntroQuestion: function() {
		if (this.position < this.container1Pos){
			this.position += 2;
			/*
			if(this.isIEold){
				this.fixIEoldScroll('get');
				this.container_dom.style.top = this.positionWindow.y + this.position + "px";
				this.container_dom.style.left = this.positionWindow.x + "px";
			}else{
			*/
			this.container_dom.style.marginTop = this.position + "px";
			// };
		}else{
			window.clearInterval(this.timers.slideDownIntroQuestion);
/*
			if(this.isIEold){
				this.ieFixTimer = window.setInterval(function(){GlobalSurvey.fixIEoldScroll.call(GlobalSurvey)}, 20);
			};
*/
		};
	},

	slideUpIntroQuestion: function(){
		if(this.position > - this.containerHeight){
			this.position -= 2;
			/*
			if(this.isIEold){
				this.fixIEoldScroll('get');
				this.container_dom.style.top = this.positionWindow.y + this.position + "px";
				this.container_dom.style.left = this.positionWindow.x + "px";
			}else{
			*/
			this.container_dom.style.marginTop = this.position + "px";
			/* }; */
		}else{
			window.clearInterval(this.timers.slideUpIntroQuestion);
			this.container_dom.style.display = "none";
		};
	},

	initSurveyQuestion: function() {
		this.containerInner_dom.innerHTML = 
			'<div id="GlobalSurvey_subContainer2">' +
				'<div id="GlobalSurvey_surveyQuestion">' +
					'<p>'+this.questionText+'</p>' + 
					'<div id="GlobalSurvey_ratingColorbar"></div>' +
					'<div id="GlobalSurvey_answerRating"><div id="GlobalSurvey_rating0">'+this.translatedText.rating0+'</div><div id="GlobalSurvey_rating1">'+this.translatedText.rating1+'</div></div>' +
				'</div>' +
			'</div>';
		this.answerRating_dom = document.getElementById("GlobalSurvey_answerRating");
		this.ratingColorbar_dom = document.getElementById("GlobalSurvey_ratingColorbar");

		if (this.isIEold) {
			// fix transparent PNG for IE 6:
			var bgImg = this.answerRating_dom.currentStyle.backgroundImage || this.answerRating_dom.style.backgroundImage;
			if (bgImg.match(/^url[("']+(.*\.png)[)"']+$/i))
			{
				var s = RegExp.$1;
				this.answerRating_dom.style.backgroundImage = 'none';
				this.answerRating_dom.style.filter = 'progid:DXImageTransform.Microsoft.AlphaImageLoader(src="'+s+'",sizingMethod="crop")';
			}
		}

		this.answerRating_dom.onclick = function(evt){
			if (!evt) {
				evt = window.event;
			}
			// this correction shifts the results a bit to match the background image (numbers.png)
			var correction = 0.6;
			var rating = Math.min(10, Math.round(evt.clientX * 10 / GlobalSurvey.ratingWidth + correction));
			
			GlobalSurvey.sendResponse( GlobalSurvey.respondUrl,	'/question_id:'+GlobalSurvey.questionId+'/result:'+rating);
			window.clearInterval(GlobalSurvey.ieFixTimer);

			GlobalSurvey.initThanks();
		};
		this.answerRating_dom.onmousemove = function(evt){
			if (!evt) {
				evt = window.event;
			}
			GlobalSurvey.ratingColorbar_dom.style.width = (evt.clientX - GlobalSurvey.ratingOffsetX) + 'px';
			GlobalSurvey.ratingColorbar_dom.style.display = 'block';
		
		};
		this.answerRating_dom.onmouseout = function(evt){
			if (!evt) {
				evt = window.event;
			}
			GlobalSurvey.ratingColorbar_dom.style.display = 'none';
		};
	},

	slideDownSurveyQuestion: function() {
		if(this.position < this.container2Pos){
			this.position += 2;
			this.container_dom.style.marginTop = this.position + "px";
		}else{
			this.container_dom.style.marginTop = this.container2Pos + "px";
			window.clearInterval(this.timers.slideDownSurveyQuestion);
/*
			if(this.isIEold){
				this.ieFixTimer = window.setInterval(function(){GlobalSurvey.fixIEoldScroll.call(GlobalSurvey)}, 20);
			};
*/
		};
	},

	initThanks: function() {
		this.containerInner_dom.innerHTML = 
			'<div id="GlobalSurvey_subContainer3">' +
				'<div id="GlobalSurvey_thanks">' +
					'<p>'+this.translatedText.thanks+'</p>' +
				'</div>' + 
			'</div>';
		var delayTime = 2 * 1000;
		
		function initHideThanks(){
			window.clearInterval(GlobalSurvey.ieFixTimer);
			GlobalSurvey.timers.hideThanks = window.setInterval(function(){GlobalSurvey.hideThanks.call(GlobalSurvey)}, 20);
		};

		window.setTimeout(initHideThanks, delayTime);
	},

	hideThanks: function(){
		if(this.position > - this.containerHeight){
			this.position -= 2;
			/*
			if(this.isIEold){
				this.fixIEoldScroll('get');
				this.container_dom.style.margi = this.positionWindow.y + this.position + "px";
				this.container_dom.style.left = this.positionWindow.x + "px";
			}else{
			*/
			this.container_dom.style.marginTop = this.position + "px";
			// };
		}else{
			this.container_dom.style.display = "none";
			window.clearInterval(this.timers.hideThanks);
		};
	},

	showIntroQuestion: function(){
		this.position = 0 - this.containerHeight;
		this.container_dom.style.display = 'block';
		this.timers.slideDownIntroQuestion = window.setInterval(function() {GlobalSurvey.slideDownIntroQuestion.call(GlobalSurvey)}, 20);
	}
};

if (typeof GlobalSurvey_init != 'undefined') {
	GlobalSurvey_init();
}