I'm eagerly awaiting for the web interface option to control my home audio from my PDA

meanwhile I'm using with Ajax to control it remotely (both with a remote and via http)
I wanted to add a button to the skin interface to turn the amplifier on/off (through ) but there seems to be no option to set an external target.
Just for clarification:
1) I learn the IR codes from the HiFi remote with USBUIRT device,
2) set the PWR ON/OFF code to be sent from Girder with the AMPPWRON command
3) enabled Girder Web Interface
4) now if I open the link (or better if I use a HTTP GET or POST command without even opening the browser) http://server:port/ajax_sendevent.lhtml ... &device=18 the IR codes are sent to the HiFi and it's turned on.
Is there any way to set the execution of a HTTPget/HTTPpost/script/batch_file as a target of a button?
Thanks,
Virgus from Italy