function ffcreateCookie(name,value,days) {
	if (days) {
		var date = new Date();
		date.setTime(date.getTime()+(days*24*60*60*1000));
		var expires = "; expires="+date.toGMTString();
	}
	else var expires = "";
	document.cookie = name+"="+value+expires+"; path=/";
}

function ffreadCookie(name) {
	var nameEQ = name + "=";
	var ca = document.cookie.split(';');
	for(var i=0;i < ca.length;i++) {
		var c = ca[i];
		while (c.charAt(0)==' ') c = c.substring(1,c.length);
		if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
	}
	return null;
}

function fferaseCookie(name) {
	ffcreateCookie(name,"",-1);
}

function ffs4() {
	return (((1+Math.random())*0x10000)|0).toString(16).substring(1);
}

function ffuniqueId() {
	return (ffs4()+ffs4()+"-"+ffs4()+"-"+ffs4()+"-"+ffs4()+"-"+ffs4()+ffs4()+ffs4());
}

if (ffreadCookie('ffcookie') == null) ffcreateCookie('ffcookie', ffuniqueId());