// =====================================================================================
// BMCOptimise Referral Tracker Script
// Copyright 2002 BMCOptimise

function createUniqueID()
{
        var d = new Date();
        var r = Math.random();

        var id = parseInt(r * d.valueOf());

        return id;
}

function setCookie(name, value, expires, path, domain, secure)
{
        var curCookie = name + "=" + escape(value) +
                ((expires) ? "; expires=" + expires.toGMTString() : "") +
                ((path) ? "; path=" + path : "") +
                ((domain) ? "; domain=" + domain : "") +
                ((secure) ? "; secure" : "");

        document.cookie = curCookie;
}

function getCookie(name)
{
        var dc = document.cookie;
        var prefix = name + "=";
        var begin = dc.indexOf("; " + prefix);

        if(begin == -1)
        {
                begin = dc.indexOf(prefix);

                if (begin != 0)
                        return null;
        }

        else
                begin += 2;

        var end = document.cookie.indexOf(";", begin);

        if(end == -1)
                end = dc.length;

        return unescape(dc.substring(begin + prefix.length, end));
}

// =====================================================================================



// =====================================================================================

var thispage = window.location.href;
var ref = document.referrer;

if(ref.indexOf('http') == -1)
        ref = '-';

var trStr = 'http://bmcoptimise.doptracker.com/tracker.cgi?' + thispage + '|' + ref;

var today = new Date();
var expiry = new Date(today.getTime() + 28 * 24 * 60 * 60 * 1000);

if(!getCookie("trRef"))
{
	var tr = createUniqueID();
	var path = "/";
	var dom = document.domain;

	setCookie("trRef", tr, expiry, path, dom);
}

var cv = getCookie("trRef");

if(!cv)
	cv = "-";


trStr = trStr + '|' + cv;

var trRef = new Image();
trRef.src = trStr;

// =====================================================================================