var lang;
var browser;

function displayErrMsg()
{
	lang = getLang();
	if(lang == "fr")
		document.getElementById("errorMsg").innerHTML = "La page que vous recherchez n'existe pas ! Cliquez <a href='http://pmeylanphoto.hebfree.org'>ici</a> pour aller à la page d'accueil.";
	else
		document.getElementById("errorMsg").innerHTML = "The page you're looking for does not exist ! Click <a href='http://pmeylanphoto.hebfree.org'>here</a> to go to the homepage.";
}

function displayImg(imgName, imgLeg)
{
	document.getElementById("bigImg").src = "../images/" + imgName + ".jpg";
	document.getElementById("legend").innerHTML = imgLeg;
}

function getLang()
{
	browser = window.navigator.appName;
	if(browser == "Netscape")
		lang = window.navigator.language;
	else
	{
		lang = window.navigator.userLanguage;
	}
	lang = lang.substr(0,2);
	return lang;
}

function changeLang()
{
	lang = getLang();
	if(lang == "fr")
	{
		document.getElementById("indexTitle").src = "images/indexTitle_fr.jpg";
		document.getElementById("underCstr").innerHTML = "EN CONSTRUCTION";
		document.getElementById("copyright").innerHTML = "Tout le contenu de ce site est soumis à la loi sur les droits d'auteur.<br>&copy; 2009 Patrick Meylan. Tous droits réservés.";
	}
	else
	{
		document.getElementById("indexTitle").src = "images/indexTitle_en.jpg";
		document.getElementById("underCstr").innerHTML = "UNDER CONSTRUCTION";
		document.getElementById("copyright").innerHTML = "<br>All contents &copy; 2009 Patrick Meylan. All rights reserved.";
	}
}

function loadHome()
{
	if(lang == "fr")
		window.open("fr/gallery1.html","","resizable=no,width=1020,height=745,location=no,status=no,toolbar=no,menubar=no");
	else
		window.open("en/gallery1.html","","resizable=no,width=1020,height=745,location=no,status=no,toolbar=no,menubar=no");
}

var deltaY;
var intervalID;

function wheelScroll()
{
	if(event.wheelDelta < 0)
		deltaY = 20;
	else
		deltaY = -20;
	scroll();
}

function scroll()
{
	document.getElementById("thumbnailList").scrollTop += deltaY;
}

function stopScroll()
{
	document.getElementById("arrowDown").src = "../images/arrowDownOff.gif";
	document.getElementById("arrowUp").src = "../images/arrowUpOff.gif";
	clearInterval(intervalID);
}

function scrollDown()
{
	document.getElementById("arrowDown").src = "../images/arrowDownOn.gif";
	deltaY = 8;
	intervalID = window.setInterval(scroll, 20);
}

function scrollUp()
{
	document.getElementById("arrowUp").src = "../images/arrowUpOn.gif";
	deltaY = -8;
	intervalID = window.setInterval(scroll, 20);
}