function EcrireCookie(nom, valeur)
{
	var argv = EcrireCookie.arguments;
	var argc = EcrireCookie.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 = nom+'='+escape(valeur)+
	((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 LireCookie(nom)
{
	var arg = nom+'=';
	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;
}