function createCookie(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 gup( name )
{
  var regexS = "[\\?&]"+name+"=([^&#]*)";
  var regex = new RegExp( regexS );
  var tmpURL = window.location.href;
  var results = regex.exec( tmpURL );
  if( results == null )
    return "website-LGL";
  else
    return results[1];
}
var as = gup( 'as' );
if (document.cookie && document.cookie.indexOf("referrer") > -1)
{
// do nothing cookie exists
}
else{
createCookie('referrer',as,30);
}