A new release of Select Fix is available : Select Fix 0.30

This version should be faster than previous one and have a smaller footprint while running.

You'll notice that there is now a Protype version in the archive file : select_fix.prototype.js.

Use this file, instead of select_fix.js if you are using the Prototype framework. It will save you some bytes and memory. You may want to try the example using Prototype and Script.aculo.us too (the floating item is a Draggable element).