Looking for dock tweak

Hi guys. I'm new to the jailbreak group just had my eyes opened and so far iam really loving my iPhone anyway on to my question I'm currently setting up my UI and am close to being done. What I was wondering if there is a tweak or app that will auto hide my dock then show them on a gesture swipe? Any help would be greatly appreciated
Incase you need to know
My phone is a Iph4 my jailbreak is redsnow

Thanks a bunch guys

though i dont have the answer, i hope someone does because that would be super ill. just like my macbook

I'm not sure. Maybe Lockinfo?