Some people complain of getting banned by using bot to AFK in BGs such as AV or just don't want to risk it. But their is a easier solution. You will not be using a bot for this, just a simple script program.
First off go download Autoit3 if you don't have it yet. Heres the link
AutoIt v3 - Downloads
Once you've downloaded Autoit3 next thing you'll need is the script.
I already have it so heres the download
RapidShare: Easy Filehosting
After the script is downloaded run the script.
Now you may ask yourself, what will this do? Well, what it'll do is use the space bar each 4-5 seconds. So basically all you have to do is run the script, go back on WoW, and you'll be jumping each 4-5 seconds. Its as simple as that! Good luck!
Sorry if this is a repost.