function onLoad() {
	
	launch_random();
	
	var popup_opener	= GetCookie("popup_opener");
	if( popup_opener == null ) {
		var top		= ((screen.height-292)/2)-(292/2);
		var left	= (screen.width-291)/2;
		var opened	= window.open("http://www.la-source.fr/style1/HTML/popUps/popupLaSource.html","LaSourceQuelle","menubar=no, status=no, scrollbars=no, menubar=no, width=271, height=272, top="+top+", left="+left);
		
		if( opened ) {
			var pathname="/";
			var myDomain=pathname.substring(0,pathname.lastIndexOf('/')) +'/';
			var date_exp = new Date();
			date_exp.setTime(date_exp.getTime()+(365*24*3600*1000)); // 365 jours
			
			SetCookie("popup_opener", "opened", date_exp, myDomain);
		}
	}

}

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

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;
}