function delete_cookie ( cookie_name )
{
  var cookie_date = new Date ( );  // current date & time
  cookie_date.setTime ( cookie_date.getTime() - 1 );
  document.cookie = cookie_name += "=; expires=" + cookie_date.toGMTString();
}

var avanturl = location.href;

if (avanturl.indexOf("avad=") > 0) {
	var affdata;
	var merchant_id = 10042;
	var cookie_name = 'avant_' + merchant_id;
	var cookie_days = 45;
	var cookie_domain = '.blackhoundny.com';
	var aUrl = avanturl.split("avad=");

	// Delete any existing cookie
	delete_cookie(cookie_name);

	// Parse out tracking data from the url
	if (aUrl[1].indexOf("&") > 0) {
		affdata = aUrl[1].substring(0, aUrl[1].indexOf("&"));
	}
	else {
		affdata = aUrl[1];
	}

	var expdate = new Date();
	expdate.setTime(expdate.getTime() + cookie_days*24*60*60*1000);
	document.cookie = cookie_name + "=" + escape(affdata) + "; expires=" + expdate + "; path=/; domain=" + cookie_domain + ";";
}