XBMC kill when RPi are in Standby

[Blightrt]

Hello,

i search for a solution, that kills XBMC when i turn off my TV and when i turn on my TV it starts XBMC.

It should relieve the CPU and to have more power for other programs, like pyload or downloaddeamon

I think it would be work when CEC is disconnect with a script or on a button on my remote.

Any Idea? Thanks in Advance