// Generic Fonctions

// Detection de browser et systeme utilise, et stocke en variable globale sous Browser
var detect = navigator.userAgent.toLowerCase();
var OS,browser,version,total,thestring;

if (checkIt('konqueror'))
{
	browser = "Konqueror";
	OS = "Linux";
}
else if (checkIt('safari')) {browser = "Safari";}
else if (checkIt('omniweb')) {browser = "OmniWeb";}
else if (checkIt('opera')) {browser = "Opera";}
else if (checkIt('webtv')) {browser = "WebTV";}
else if (checkIt('icab')) {browser = "iCab";}
else if (checkIt('msie')) {browser = "Internet Explorer";}
else if (!checkIt('compatible'))
{
	browser = "Netscape Navigator";
	version = detect.charAt(8);
}
else browser = "An unknown browser";
if (!version) {version = detect.charAt(place + thestring.length);}
if (!OS)
{
	if (checkIt('linux')) {OS = "Linux";}
	else if (checkIt('x11')) {OS = "Unix";}
	else if (checkIt('mac')) {OS = "Mac";}
	else if (checkIt('win')) {OS = "Windows";}
	else {OS = "an unknown operating system";}
}

function checkIt(string)
{
	place = detect.indexOf(string) + 1;
	thestring = string;
	return place;
}

// Gestion d'ouverture des fenetres
var NS4 = (document.layers)? true : false;
var IE = (document.all)? true : false;
if (IE) {
	var windowW = 790;
} else {
	var windowW = 770;
}

if ( browser != 'Safari' ) {windowH = 560;} else {windowH = 510; windowW = 760; }
var windowX = Math.ceil( (self.screen.availWidth  - windowW) / 2 );
var windowY = Math.ceil( (self.screen.availHeight - windowH) / 2 );

function start()
{
	parent.window.resizeTo(Math.ceil( windowW ) , Math.ceil( windowH ));
	parent.window.moveTo(Math.ceil( windowX ) , Math.ceil( windowY ));
}

function resize() {
	wW = 768;
	if ( self.screen.availWidth == 800 && OS == "Mac") { 
		wH = 520; wW = 775;
	} else if ( self.screen.availWidth == 800 && OS != "Mac" ) {
		wH = 460; wW = 775;
	} else if (self.screen.availWidth >= 1024) {
		if (IE) { wH = 725; wW = 788;} else if (browser == 'Safari') { wH = 685;	} else { wH = 720; }
	} else {
		if (browser != 'Safari' && self.screen.availWidth != 800 ) { wH = 460; } else {	wH = 510; }
	}
	wX = Math.ceil( (self.screen.availWidth  - wW) / 2 );
	wY = Math.ceil( (self.screen.availHeight - wH) / 2 );
	if ( self.screen.availWidth == 800) { 
		window.moveTo(5,5);
		window.resizeTo(wW, wH);
	} else {
		window.moveTo(wX,wY);
		window.resizeTo(wW, wH);
	}
	this.focus();
}

function openCommande(Lang)
{
	if (Lang == 'fr')
	{
		if (confirm ("Afin de pouvoir écouter et commander notre dernier album, Liberté, vous allez être redirigé vers le site de notre producteur, Spianato.\n\nMerci et bonne écoute !"))
			location.href = "http://www.spianato.com/disques.php?id=1";
		else
			return;
	} else {
		if (confirm ("To listen and order our latest album, Liberté, you'll be redirected to our productor's website, Spianato.\n\nThanks, and enjoy listening !"))
			location.href = "http://www.spianato.com/disques.php?id=1&cLang=1";
		else
			return;
	}
}

/* Ancienne version
function openCommande() {
	wW = 535;
	if (self.screen.availWidth >= 1024) {
		if (IE) {wH = 554;} else {wH = 600;}
		param = 'width='+ wW +',height='+ wH +',fullscreen=0,directories=0,location=0,resizable=1,menubar=0,scrollbars=0,status=0,toolbar=0';
	} else {
		wH = 554;
		param = 'width='+ wW +',height='+ wH +',fullscreen=0,directories=0,location=0,resizable=1,menubar=0,scrollbars=1,status=0,toolbar=0'
	}
	wX = Math.ceil( (self.screen.availWidth  - wW) / 2 );
	wY = Math.ceil( (self.screen.availHeight - wH) / 2 );
	siteOrder = 'buycd.htm';
	siteOrd = window.open(siteOrder,'commande',param);
	siteOrd.moveTo(wX,wY);
	siteOrd.focus();
}
*/

// retourne l'url courante sans le nom du fichier
function getUrl(url) {
	var count = url.length;
	var tmp = '';
	var urlName = '';
	while(tmp != "/" && count > 0)
	{
		urlName = tmp + urlName;
		tmp = url.substr(--count, 1); 
	}
	currentUrlStr = url.substr(0, count + 1);
	return currentUrlStr;
}

// fonction permettant le swap d'image entre une version off et roll
// par defaut utilise l'extension .jpg si non specifie
// utilisation : swap(idimg, state, ext)
function swap(select, state, ext) {
	if (ext==null) {
		ext = 'jpg';
	}
	imgName = document.getElementById(select).id;
	imgPath = document.getElementById(select).src;
	basePath = getUrl(document.getElementById(select).src);
	document.getElementById(select).src = basePath + imgName + '_' + state +'.' + ext;
}