[SOLVED] Copy Modern Theme's 'Language Tabs' functionality to another theme

[DevPro]

Hi, I have used Modern theme in the past. Recently I switched to a new theme "OsclassWizard Reality". Everything works fine except the "Language Tabs Functionality" on item-post.php as it used to be in Modern Theme, It just showed current language with no tabs.

Finally I added the code:
<?php ItemForm::multilanguage_title_description(); ?>

It seems to working fine when comes to displaying and inserting language but doesn't display in tabs. (See screenshot)

Can anyone assist me on this please.

[frosticek]

@DevPro
You need to copy also related CSS and JS styles of those tabs.

[DevPro]

Thanks frosticek,  Yes you are right.

I realized that in the beginning but couldn't find any script matching to the kind of query this feature needs..

May be I will look again.