Landing Page Scripts to Boost Your Profits!

We've decided to create a master thread with useful scripts that you can use on your landing page.

These first few scripts are just the initial ones, but I invite everyone to contribute to this post so we can have a good resource that all AffLift members can use. To contribute, please post your script in a post below. This can be a new script or an improved version of a script we already have. If you contribute a script, I'll add your script to the main post and tag you as a contributor.