// JavaScript Document

function localizedAlert(messageFR, messageEN) {
	if(typeof language == 'undefined') {
		alert(messageEN + '\n\n' + messageFR);
	} else if(language == 'fr') {
		alert(messageFR);
	} else {
		alert(messageEN);
	}
}

var BrowserDetect = {
	init: function () {
		this.browser = this.searchString(this.dataBrowser) || "An unknown browser";
		this.version = this.searchVersion(navigator.userAgent)
			|| this.searchVersion(navigator.appVersion)
			|| "an unknown version";
		this.OS = this.searchString(this.dataOS) || "an unknown OS";
	},
	searchString: function (data) {
		for (var i=0;i<data.length;i++)	{
			var dataString = data[i].string;
			var dataProp = data[i].prop;
			this.versionSearchString = data[i].versionSearch || data[i].identity;
			if (dataString) {
				if (dataString.indexOf(data[i].subString) != -1)
					return data[i].identity;
			}
			else if (dataProp)
				return data[i].identity;
		}
	},
	searchVersion: function (dataString) {
		var index = dataString.indexOf(this.versionSearchString);
		if (index == -1) return;
		return parseFloat(dataString.substring(index+this.versionSearchString.length+1));
	},
	dataBrowser: [
		{ 	string: navigator.userAgent,
			subString: "OmniWeb",
			versionSearch: "OmniWeb/",
			identity: "OmniWeb"
		},
		{
			string: navigator.vendor,
			subString: "Apple",
			identity: "Safari"
		},
		{
			prop: window.opera,
			identity: "Opera"
		},
		{
			string: navigator.vendor,
			subString: "iCab",
			identity: "iCab"
		},
		{
			string: navigator.vendor,
			subString: "KDE",
			identity: "Konqueror"
		},
		{
			string: navigator.userAgent,
			subString: "Firefox",
			identity: "Firefox"
		},
		{
			string: navigator.vendor,
			subString: "Camino",
			identity: "Camino"
		},
		{		// for newer Netscapes (6+)
			string: navigator.userAgent,
			subString: "Netscape",
			identity: "Netscape"
		},
		{
			string: navigator.userAgent,
			subString: "MSIE",
			identity: "Explorer",
			versionSearch: "MSIE"
		},
		{
			string: navigator.userAgent,
			subString: "Gecko",
			identity: "Mozilla",
			versionSearch: "rv"
		},
		{ 		// for older Netscapes (4-)
			string: navigator.userAgent,
			subString: "Mozilla",
			identity: "Netscape",
			versionSearch: "Mozilla"
		}
	],
	dataOS : [
		{
			string: navigator.platform,
			subString: "Win",
			identity: "Windows"
		},
		{
			string: navigator.platform,
			subString: "Mac",
			identity: "Mac"
		},
		{
			string: navigator.platform,
			subString: "Linux",
			identity: "Linux"
		}
	]

};

function alertWrongBrowser() {
	alert('Only these Web Browsers are supported: Internet Explorer, Firefox, Safari and Mozilla');
}

function putOn(event) {
	var languageExtension;
	if(typeof language != 'undefined') {
		languageExtension = '_' + language;
	} else {
		languageExtension = '';
	}
	if(BrowserDetect.browser == 'Explorer') {
		event.srcElement.src = event.srcElement.id + '_on' + languageExtension + '.gif'
	} else if (BrowserDetect.browser == 'Firefox' || BrowserDetect.browser == 'Safari' || BrowserDetect.browser == 'Mozilla') {
		event.target.src = event.target.id + '_on' + languageExtension + '.gif'
	} else {
		//alertWrongBrowser();
	}
}

function putOff(event) {
	var languageExtension;
	if(typeof language != 'undefined') {
		languageExtension = '_' + language;
	} else {
		languageExtension = '';
	}
	if(BrowserDetect.browser == 'Explorer') {		
		event.srcElement.src = event.srcElement.id + '_off' + languageExtension + '.gif'
	} else if (BrowserDetect.browser == 'Firefox' || BrowserDetect.browser == 'Safari' || BrowserDetect.browser == 'Mozilla') {
		event.target.src = event.target.id + '_off' + languageExtension + '.gif'
	} else {
		//alertWrongBrowser();
	}
}

function resizeCenterWindow() {
	var desiredWidth = 1024;
	var desiredHeight = 740;
	var maxWidth = window.screen.availWidth;
	var maxHeight = window.screen.availHeight;
	if((maxWidth < desiredWidth) || (maxHeight < desiredHeight)) {
		/*
		localizedAlert('La définition de votre écran doit être aumoins de ' + desiredWidth + ' pixels en largeur et de ' + desiredHeight + ' pixels en hauteur', 'The resolution of your screen must be of at least ' + desiredWidth + ' pixels in width and ' + desiredHeight + ' pixels in height');
		return;
		*/
	}
	window.resizeTo(desiredWidth,desiredHeight);
	window.moveTo((maxWidth - desiredWidth) / 2.,(maxHeight - desiredHeight) / 2.);	
}


function wait(msecs) {
	var start = new Date().getTime();
	var cur = start;
	while(cur - start < msecs) {
		cur = new Date().getTime();
	}	
} 

	function preloadMenuImages() {
		var imageNames = new Array(12);
		imageNames[0] = "Home";
		imageNames[1] = "Collections";
		imageNames[2] = "SpecialProjects";
		imageNames[3] = "Company";
		imageNames[4] = "ExhibitionsNews";
		imageNames[5] = "Press";
		imageNames[6] = "WhereToBuy";
		imageNames[7] = "ProfessionalAccess";
		imageNames[8] = "LegalDisclaimers";
		imageNames[9] = "ContactUs";
		imageNames[10] = "Presentation/NextPage";
		imageNames[11] = "Presentation/PreviousPage";
		
		for(imageIndex = 0; imageIndex < imageNames.length; imageIndex++) {
			var imageToLoad = new Image();	
			imageToLoad.src = imageNames[imageIndex] + "_on_" + language + ".gif";
		}  
	}
	
	function preloadLanguagesImages() {
		var imageNames = new Array(2);
		imageNames[0] = "Francais";
		imageNames[1] = "English";
		
		for(imageIndex = 0; imageIndex < imageNames.length; imageIndex++) {
			var imageToLoad = new Image();	
			imageToLoad.src = imageNames[imageIndex] + "_on.gif";
		}  
	}