Javascript to randomize content, measure visitors, and measure interaction with div -- 2

I have a small project I expect can be completed for $30. I have a javascript snippet that randomly (equally) switches out content at a certain div (e.g.: #random-1) on an html page: [login to view URL] I need to add to the script to: 1) measure (a) how many unique visitors to the page, (b) how many visitors see each variation of #random-1, and (c) how many of each of those click a target button (#target-1) 2) update and display all this data to a table in an html file ([login to view URL] - red columns) 3) update directly or via xml/json is fine, please explain your preference 4) using cookies or IP tracking (or other way) make sure that once a user sees a variation, they always see the same option Since it's a small project, I expect $30 should cover it..