Hack Facebook Chat History

There is a simpe easy Trick to Hack Facebook Chat History. We can Hack Chat History even if our Friends are Offline. To use this Trick follow the simple steps given below :
1) Open Friends profile.

2) Right Click on the Poke and Select Copy Link Location. Now we have the ID in our Clipboard.
3) This will exactly look like :
 http://www.facebook.com/profile.php?id=XYZ
( where XYX can be any numbers and this XYZ is nothing but the ID ).

4) Now in the Address Bar type "javascript:Chat.openTab(XYZ)" (without qoutes) and press Enter.
5) Now it is done.
6) You can see full Chat History now.
So this is a simple Trick to Hack Facebook Chat History.