Find Thevenin Equivalent at A-B in Circuit

[chronicals]

Homework Statement

Find the Thevenin equivalent at terminals A-B of the circuit below.
http://img5.imageshack.us/img5/1723/thevenin.jpg

Homework Equations

The Attempt at a Solution

 

[ideasrule]

What do you think? Remember that voltage sources are considered short-circuits and the relevant voltage is the open-circuit voltage.

 

[chronicals]

i have no idea about it, i need help, please

 

[Redbelly98]

Follow the advice that ideasrule gave you, and post what you get.