// copyright 2006 PROSEO B.V.
// v1.0
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		= "";
	var ck			= name+"="+value+expires+"; path=/";
	document.cookie = ck;
}

function eraseCookie(name) {
	createCookie(name,"",-1);
}

var ref	 = top.document.referrer;
var loc	 = top.document.domain;
var lpg	 = top.document.location;

if (ref.length > 1 )
{
	var ref1 = ref.split('//');

	if ( ref1[1].length > 1) {
		var ref2 = ref1[1].split('/');
		var ref3 = ref2[0];
	}
}

if( loc!=ref3 ) // if referral is not from same domain then save cookie
{
	eraseCookie('referer');
	eraseCookie('landingpage');
	eraseCookie('campaign');
	
	createCookie('referer',ref,1);
	createCookie('landingpage',lpg,1);	

	var x = window.location.href.split('campaign=');
	if( x.length > 1 )
	{
		x1 = x[1].split('&');
		if( x1.lenght > 1 )
		{
			cam = x1[0];
		}
		else
		{
			cam = x1;
		}
		createCookie('campaign',cam,1);	
	}
}