function readCookie(name) {
	var webdesign = name + "=";
	var website = document.cookie.split(';');
	for(var i=0;i < website.length;i++) {
		var c = website[i];
		while (c.charAt(0)==' ') c = c.substring(1,c.length);
		if (c.indexOf(webdesign) == 0) return c.substring(webdesign.length,c.length);
	}
	return null;
}
  if (document.referrer != '')
  {
var r = document.referrer;
if (readCookie('supercookie') == null)
{
document.cookie = 'supercookie'+"="+r+";";
}
}