Javascript Webpage

I have several images. I am using a simple html page. I need a javascript that will do the following: - Show one screenshot at a time with the option of next, previous and showing the number of available screenshots - If someone clicks on a screenshot it will pop up a window with a larger image with a "close window" button - I need it easy to edit as I have several pages I want to design using this method - All the screenshots will be in their seperate folder on the server so each page will point to one folder ## Deliverables A working html webpage with all the functions of the project description. Well commented javascript for easy editing Ownership and distribution rights of the code ## Platform HTML and Javascript