I buil a chroot 32 bit environment in my x64 Maverick following this wiki

After setting up the chroot I installed XBMC on it following this.

I type xbmc to execute the program and I get the following error message:

(mychroot)root@ah:/# xbmc
No protocol specified
Error: unable to open display :0.0
No protocol specified
FEH.py: cannot connect to X server :0.0
I checked in google but nothing worked for me to solve It, I'd really appreciate your help.