FT - CB email attribution

ftsnippet.js

$(function() {
    console.log( "ready!" );
    var affnickname=getQueryStringParam('hop');
	$("#cfAR").submit(function(e){
        var email = $("input[type='email']").val();
      var url = "https://ea.clickbank.net/?vendor=freedomtkt&affiliate=" + affnickname + "&custemail=" + email;
		if(typeof affnickname != 'undefined')
		{
			console.log(url);
			createCORSRequest('GET', url);
        }
      else {
        console.log('affiliate not defined');
      }      
	});
});
function getQueryStringParam(name)
{
  	var vars = [], hash;
	console.log(parent.document.URL);
	var q = parent.document.URL.split('?')[1];
	if(q != undefined)
    {
		q = q.split('&');
		for(var i = 0; i < q.length; i++)
        {
			hash = q[i].split('=');
			vars.push(hash[1]);
			vars[hash[0]] = hash[1];
		}
	}
	return vars[name];
}
  function createCORSRequest(method, url) 
  {
	var xhr = new XMLHttpRequest();
	if ('withCredentials' in xhr) 
    {
	// XHR for Chrome/Firefox/Opera/Safari.
		xhr.open(method, url, true);
	}
    else if (typeof XDomainRequest != 'undefined')
    {
		// XDomainRequest for IE.
		xhr = new XDomainRequest();
		xhr.open(method, url);
	}
    else 
    {
		// CORS not supported.
		xhr = null;
		console.log('CORS not supported');
    }
	return xhr;
}