Can't get rid of annoying tab on home screen

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http://androidforums.com – So I don't know what I did but this blue tab is stuck on the left side of my screen. You can pull the tab out and open certain apps. It's a light blue tab with two vertical lines in it. If you press and hold it you can slide the tab up and down the left side of the screen. Thanks Ps.. using adw launcher (General)