Hi

I once saw a script that could be made to make small changes to a website, when it comes to text and pictures, and their placement on a page.

In essence, it let you make different versions of a page, and then it collected stats so that you could monitor the repercussions of an altered text, or of a different picture etc... It is very helpful when it comes to increasing conversion rates on a site.

Does anyone know what this software is called ?