[TYPO3-english] Settings: plugin.tx_mbkdimagelightbox_pi1.galleriffic

[HocomAdvies [ Wiechert Hooghwinkel ]]

How can I set the proper Language settings for mbkdimagelightbox? I tried to get it trough 

plugin.tx_mbkdimagelightbox_pi1.galleriffic{
  _LOCAL_LANG.nl {
    previous = Vorige Foto
    next = Volgende Foto
  }
} 

Now when I was looking into all the files etc., and came across a js file which is loaded:
typo3conf/ext/mbkdimagelightbox/res/js/galleriffic-2.0/js/galleriffic_starter.js 

And I am afraid the prevous / next part is handled by that file ? So my original clever idea was telling tx_mbkdimagelightbox not to use that file and have it using my adapted file instead, just as I did with the css file. Now the thing is that there is not an part in the TS Object Browser where i can overwrite that part?
This is what it looks now:

[js]
[smarty]
[lightbox]
[smoothgallery]
[thumbzoomer]
[contentflow]
[popeye]
[jqueryzoom]
[galleriffic]
[usedefaultcss] = 0 # galleriffic configuration # insert default css
[thumbnailimage]
[width] = 75c # small size images
[height] = 75c
[galleryimage]
[maxW] = 495 # big size images
[maxH] = 500
[extensionaccess] = 0 # get extension access for directory mode
[_LOCAL_LANG]
[nl]
[previous] = Vorige Foto
[next] = Volgende Foto
  

Thsi is in the js.file:
  		playLinkText:              'Play Slideshow',
                pauseLinkText:             'Pause Slideshow',
                prevLinkText:              '‹ Previous Photo',
                nextLinkText:              'Next Photo ›',
                nextPageLinkText:          'Next ›',
                prevPageLinkText:          '‹ Prev',
                
So could this be the reason its not working?

I tried it like this, using the parts from the locallang.xml:

plugin.tx_mbkdimagelightbox_pi1.galleriffic{
  _LOCAL_LANG.nl {
    previous = Vorige Foto
    next = Volgende Foto
  }
}

So when I just have: page.includeJS.file10 = fileadmin/template/myadaptedjs.js  how can I get that being used instead of the original file?
Thanks for your advice. 

Beste Regards,
HocomAdvies

Wiechert Hooghwinkel
www.hocom-advies.nl