Unable to hide a layout selector on a certain website

[rado84]

I've been using ABP for a very long time and know very well how to block things. But now I have a very strange problem I don't know how to solve and ABP isn't helping at all. On all other sites when I wanna hide and/or block something from working, such as Kredor keyboard layout selector, it always works and the blocked thing in question doesn't appear and doesn't work anymore. But on the site I'm starting this topic about, I can hide the element from showing but I can't block it from working. When I use ABP element helper or ABP itself - the selector is getting hidden but when I refresh the page I can't see the selector but it's still working.
How do I know it's still working? I'm from Bulgaria and our nation uses Cyrillic alphabet. Nowadays almost all sites require their users to write using Cyrillic alphabet and since the most of us know Phonetic Cyrillic alphabet better than the standard, we use BG Phonetic. Now, this and many other sites have integrated selectors which are helpful for people who don't know how to install Cyrillic on their computers. The problem on that specific site is that: let's say I want to type my name in Cyrillic, which looks like this: Радослав. If after my name I want to type something in English, like AdBlock Plus, it will look like this: АдБлоцк Плус instead of AdBlock Plus. Basically, this stupid selector doesn't allow the keyboard layout to be changed because it overrides Windows language bar functions.
I tried everything I could come up with in order to disable it and nothing works. I made a short video so that you can see what I want to get myself rid of and hopefully you can come up with a way of disabling it. Here's the link for the video: http://www.mediafire.com/?t6wr88u3myjhmrp - avi file 545 KB archived, 126 MB - extracted.
If ABP dev needs to test it I can register an account for him and give him the data for the test account.

I have found the selector in the html code and tried to block it manually by adding the div class to the blocked elements but as I said - the selector still works, regardless that it's not being displayed anymore.

[lewisje]

Radoslav, are you trying to make Prodavalnik default to English text? On this page (you can only see the posting form if you're logged in), I don't see how you can use Adblock Plus to change the default encoding: http://prodavalnik.com/forum/topic/?t=51899

[rado84]

No, I don't want to change the display language of the website itself. I want to be able to change the language I write in. That input language selector you saw on the posting form is my problem - the one which changes to "OFF", "PHO and "БДС" when you click on it. This thing only changes the keyboard layout for the input language but I can't make it stop working - even when it's blocked and/or hidden by ABP and its helpers, the damn thing still works, altough you can't see it nor click it.

[lewisje]

It works via the same script that allows the rest of the forum's functionality to work; AFAIK you cannot use ABP to make Prodavalnik's language selector (for forum posts, a.k.a. the only language selector I noticed on the site) default to anything else, and you can't block the script that makes that button work without utterly breaking the forum.