Martin Acoustic fix-it help

Hi all! First time post. I could use a bit of advice, and I must apologize in advance for my terminology. I own a Martin DXM Dreadnought Acoustic, made of HPL. It recently took a nasty spill on a hard tile floor which has resulted in about half of the back of the guitar separating (split) from the body. Pic Link: http://tinypic.com/view.php?pic=2h6bnsj&s=3

I can't afford a professional repair at this time, so my plan is to simply glue it back into place so I can play it once again. I'm not overly concerned about it's appearance, I just want to make sure it's sturdy and prevent the rest of the back from separating. So I guess my main question is: Is there any specific type of glue that I should be using, or just good ol' plain wood glue? Any simple suggestions would be greatly appreciated. I'm def. not the mechanical type when it comes to instruments. ;]

Thanks in advance!