//gestion des cookies

	
function CreateCookie(Session)
{
	
	var  i=0;
	var largeur;
	var hauteur;
	var resol;
	var source=window.location;
	var nom='video';	
	var Mycookie = GetCookie('video');
	
	//resolution video du client
	largeur = screen.width;
	
	if (largeur<1000)
	{largeur='0'+largeur;}
	
	hauteur = screen.height;
	resol=largeur+"x"+hauteur;
	//alert ("valeur du cookie "+Mycookie);
	
	window.document.write ("<img src='save_video.php?resolv="+resol+"&sid="+Session+"' width=1 height=1>");
	
	
}


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;
}


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