https://www.purina.cz/modules/contrib/ln_datalayer/js/ln_datalayer.js?tmmuw0

1/**
2 * @file
3 * Initializes some client side datalayer tags.
4 */
5function getCookie(cname) {
6  'use strict';
7  var name = cname + '=';
8  var ca = document.cookie.split(';');
9  for (var i = 0; i < ca.length; i++) {
10    var c = ca[i];
11    while (c.charAt(0) === ' ') {
12      c = c.substring(1);
13    }
14    if (c.indexOf(name) === 0) {
15      return c.substring(name.length, c.length);
16    }
17  }
18  return '';
19}
20
21if (typeof dataLayer_tags !== 'undefined' && dataLayer_tags.userInformation) {
22  if (typeof dataLayer_tags.userInformation.gaClientID !== 'undefined') {
23    dataLayer_tags.userInformation.gaClientID = getCookie('_ga');
24  }
25  if (typeof dataLayer_tags.userInformation.deviceType !== 'undefined') {
26    if (typeof isMobile !== undefined) {
27      var deviceType = 'Desktop';
28      if (isMobile.tablet) {
29        deviceType = 'Tablet';
30      }
31      if (isMobile.phone) {
32        deviceType = 'Mobile';
33      }
34      dataLayer_tags.userInformation.deviceType = deviceType;
35    }
36  }
37}