Joomla 1.5 выложил код из расширения js это вирус?

Public_html/media/system/mootools-uncompressed.js

Код (CODE):

1. /*
2. Script: Json.Remote.js
3.     Contains <Json.Remote>.
4.  
5. License:
6.     MIT-style license.
7. */
8.  
9. /*
10. Class: Json.Remote
11.     Wrapped XHR with automated sending and receiving of Javascript Objects in Json Format.
12.     Inherits methods, properties, options and events from <XHR>.
13.  
14. Arguments:
15.     url - the url you want to send your object to.
16.     options - see <XHR> options
17.  
18. Example:
19.     this code will send user information based on name/last name
20.     (start code)
21.     var jSonRequest = new Json.Remote("http://site.com/tellMeAge.php", {onComplete: function(person){
22.         alert(person.age); //is 25 years
23.         alert(person.height); //is 170 cm
24.         alert(person.weight); //is 120 kg
25.     }}).send({'name': 'John', 'lastName': 'Doe'});
26.     (end)
27.  
28.  
29. Public_html/media/system/combobox.js
30.  
31.  
32. // Add iFrame for IE
33.       if (this.is_ie) {
34.          var iframe = document.createElement('iframe');
35.          iframe.src = 'about:blank';
36.          iframe.scrolling = 'no';
37.          iframe.frameborder = '0';
38.          iframe.style.position = 'absolute';
39.          iframe.style.top = coords.y + 'px';
40.          iframe.style.left = coords.x + 'px';
41.          iframe.style.width = element.offsetWidth + 'px';
42.          iframe.style.height = element.offsetHeight + 'px';
43.          element.parentNode.insertBefore(iframe, element);
44.       }
45.    },