_mf_tag = {
  "init": function () {
    var id = 'mf_2109_div';
    var script_parts = this.find_mf_tag();
    var url = script_parts[0];
    if (url.indexOf('//') !== 0) url = '//' + url;
    var q_str = script_parts[1];
    var query_string = "";
    if (q_str !== "") query_string = "&" + q_str;
    if (url.indexOf('jp-tags.') === -1) {
      var mfidsQS = _mf_tag.mfids.qs();
      if (mfidsQS !== "") {
        // Update the PIX call with the mfids values.
        query_string += '&' + mfidsQS;
      } else {
        this.create_element(document, ['script', 'src', '//tags.mediaforge.com/fpid/2109?d=' + encodeURIComponent(_mf_tag.fpcookies.domain())], document.body);
      }
    }

    var div = this.create_element(document, ['div', 'id', id]);
    if (div) {
      div.style.display = "none";
      var body = document.getElementsByTagName('body')[0].firstChild;
      if (body) body.parentNode.insertBefore(div, body);
      var iframeSrc = url + '/pix/2109?type=pos' + query_string;
      this.create_element(document, ['iframe', 'width', '0', 'height', '0', 'src', iframeSrc], div);
      this.set_timeout(5000);
    }
  },
  "create_element": function (doc, def, parent) {
    var el = null;
    if (typeof doc.createElementNS !== "undefined") el = doc.createElementNS('http://www.w3.org/1999/xhtml', def[0]);
    else if (typeof doc.createElement !== "undefined") el = doc.createElement(def[0]);

    if (!el) return false;

    for (var i = 1; i < def.length; i++) el.setAttribute(def[i++], def[i]);

    if (parent) parent.appendChild(el);

    return el;
  },
  "set_timeout": function (t) {
    this.timeout = setTimeout('timeout_mf()', t ? t : 3000);
  },
  "inner_html": function (id, html) {
    document.getElementById(id).innerHTML = html;
  },
  "find_mf_tag": function () {
    var query_strings = [];
    var query_string = "";
    var url = "";
    var scripts = document.getElementsByTagName('script');
    for (var script_index = 0; script_index < scripts.length; script_index++) {
      script_name = scripts[script_index].src;
      if (script_name.indexOf('tags.mediaforge.com') !== -1) {
        var index = script_name.indexOf("?");
        url = '//' + script_name.split('/')[2];

        if (index > -1) {
          query_strings.push(script_name.substr(index + 1));
        }
      }
    }
    if (query_strings.length > 1) {
      for (var mf_idx = 0; mf_idx < query_strings.length; mf_idx++) {
        if (query_strings[mf_idx].indexOf("orderNumber") > -1) {
          query_string = query_strings[mf_idx];
          break
        }
      }
      if (query_string.length === 0) query_string = query_strings[0];
    }
    else if (query_strings.length === 1) query_string = query_strings[0];

    return [url, query_string];
  }
};

_mf_tag.fpcookies = {
  set: function (name, value, days, hostname) {
    var expires;
    if (days) {
      var date = new Date();
      date.setTime(date.getTime() + (days * 24 * 60 * 60 * 1000));
      expires = '; expires=' + date.toGMTString();
    } else {
      expires = '';
    }
    if (!hostname) hostname = document.domain;
    if (hostname.indexOf('.') === -1) {
      document.cookie = name + '=' + value + expires + '; path=/';
    } else {
      var domain = this.domain(hostname);
      document.cookie = name + '=' + value + expires + '; path=/; domain=.' + domain;
    }
  },
  get: function (name) {
    var c = document.cookie, nameEQ = name + '=';
    var i1 = c.indexOf(nameEQ);
    if (i1 >= 0) {
      var s1 = c.substring(i1 + nameEQ.length);
      var i2 = s1.indexOf(';');
      if (i2 < 0) {
        return s1;
      } else {
        return s1.substring(0, i2);
      }
    }
    return null;
  },
  remove: function (name, hostname) {
    this.set(name, '', -1, hostname);
  },
  domain: function (hostname) {
    if (!hostname) hostname = document.domain;
    if (this.domains[hostname]) {
      return this.domains[hostname];
    }
    var i = 0, domain = hostname, p = domain.split('.'), s = '_gd' + (new Date()).getTime();
    while (i < (p.length - 1) && document.cookie.indexOf(s + '=' + s) === -1) {
      domain = p.slice(-1 - (++i)).join('.');
      document.cookie = s + '=' + s + ';domain=' + domain;
    }
    document.cookie = s + '=;expires=Thu, 01 Jan 1970 00:00:01 GMT;domain=' + domain;
    this.domains[hostname] = domain;
    return domain;
  },
  domains: {}
};
_mf_tag.mfids = {
  ids: function () {
    var items = {}, re = /(.*?)\[(.*?)\]/g;
    var idscookie = _mf_tag.fpcookies.get('mfids');
    if (idscookie) {
      while (m = re.exec(idscookie)) {
        items[m[1]] = m[2];
      }
    }
    return items;
  }(),
  qs: function () {
    var str = '';
    for (var key in this.ids) {
      if (this.ids.hasOwnProperty(key) && this.ids[key]) {
        str += '&' + key + '=' + this.ids[key];
      }
    }
    return str.substring(1);
  },
  cookie: function () {
    var str = '';
    for (var key in this.ids) {
      if (this.ids.hasOwnProperty(key) && this.ids[key]) {
        str += key + '[' + this.ids[key] + ']';
      }
    }
    return str;
  }
};

function mf_fpidsCallback(ids) {
  if (!ids) return;
  var mf_uid1 = ids['mf_uid1'], mf_uid3 = ids['mf_uid3'];
  if (mf_uid1) _mf_tag.mfids.ids['uid1'] = mf_uid1;
  if (mf_uid3) _mf_tag.mfids.ids['uid3'] = mf_uid3;
  _mf_tag.fpcookies.set('mfids', _mf_tag.mfids.cookie(), 365);
}

function timeout_mf() {
  var t = _mf_tag.timeout;
  if (t) _mf_tag.inner_html('mf_2109_div', '');
}

_mf_tag.init();