Is there any clean way (not overwriting wp-includes\js\thickbox\thickbox.js file) to translate english next/ prev/ image # of # and Close tooltip in Wordpress native Thickbox script?
Localize Wordpress or write and load special localization for your language specialy for thickbox. Thickbox dialogs support localization provided by WP
Update - Let's Check
1. You have uncomented string <code>define('WPLANG', 'pl_PL');</code> in your wp-config.php 2. You have localization files in wp-content/languages/
I got it now. Newest WordPress version has translated Thickbox version! Thank You Code Monkey for help!
Anyway I still wonder why in version 3.3.1 the translation doesn't work (I've checked pl_PL.po file in wp-content\languages and there is translation pointing to script-loader.php where actually are strings from Thickbox for translation! :-/