Nextgallery browsing from first to last image through all pages

Hi, I have a gallery which consists of 100 images. Because I divided it on to 5 pages (20 images per page) I can to browse only 20 images at once, after that I have to change page to next one. Normal. How to change the code to realize such sollution: I click for instance image #1 and browse next images upto 100 without changing the page?

thanks for help