AutoIt script To bring back Free Trade/Wilderness

I'm sure most of you know by now that Jagex is holding a vote to get the wilderness and free trade returned to Runescape. I would like an AutoIt script that.... assists everyone in voting.

What it would do:

1. Open www.runescape.com/wilderness
2. Tab over to the "enter a username box"
3. Randomly generate a 3 or 4 character name using numbers 0-9 and characters a-z (won't repeat any names that it has generated before)
4. Enters the information
5. Loops

Anyone care to take this on?