Customize ZenPhoto on javascript based website(repost)

Hello, Here the thing: my website is created with javascript. When you go on the website, there is a loading time and the full website is loaded, then when you go from page to page, it's a javascript function who just hide and reveal the pages. I need to do a page where I will show a picture gallery using ZenPhoto. So when the user go on this galery I need a script who will load the thumbnails at this moment. (Dynamic loading) I also need you to use the template of the website to display the gallery and a nice javascript pop up to show the picture in a big format.