Write an automated web-page screen-shotter

[Armis]

I found very interesting idea to realise. In our company we have a PC for CSS coder, with 17 different browser version. So I wonder if it is possible to write something like automated screen shotter.The algorythm is following:[*]Program gets the url(s) to check.[*]Program opens browser, makes screenshot, saves it and ,if required, scrolls it down and makes another screenshot(s). So the whole page is screenshotted.I thought of doing it in AutoIt, because it's API is quite simple and WIndows oriented.What I want to know is how in AutoIt:[*]How to open a web-browser?[*]How to pass an url to it?[*]How to make a screenshot and save it to filesystem?[*]How to Define if scrolling is required?[*]How to scroll page by monitor size(so the whole page gets caught)?