function setReferrerPidCookie()
{
	var start = end = 0;
	var referrer_pid = 0;
	var tmp = location.search.toLowerCase();
	start = tmp.indexOf( "pid=" );
	if ( start != -1 )
	{
		end = location.search.indexOf( "&", start );
		if ( end != -1 )
		{
			referrer_pid = location.search.substring( start + 4, end );
		}
		else
		{
			referrer_pid = location.search.substring( start + 4 );
		}
	}
	if ( referrer_pid != 0 )
	{
		var exdate = new Date();
		exdate.setDate( exdate.getDate() + 365 );
		domain = location.host;
		a = domain.match(/(\w+?\.\w+)$/);
		document.cookie = 'ALA_REFERRER_PID' + "=" +escape( referrer_pid ) + ";path=/;domain=." + a[1] + ";expires=" + exdate.toGMTString();
	}
}
setReferrerPidCookie();