Sophisticated Power On\Off button using JavaScript

[Nahshon Williams]

Ok I now would like to try some Javascript (been avoiding her like the
plague)
Toddler steps would be great:

So:
Need a power on button that queries the unit for the current power state:

Objective:
If unit is on: change button state to "Unit ON". Set next button press
command to: Power Off
If unit is off: change button state to "Unit OFF". Set next button
press command to: Power On

Commands and Feedback:

Query Power state of Arcam: \x21\x01\x00\x01\xF0\x0D

Arcam On: \x21\x01\x00\x00\x01\x01\x0D
Arcam Off:\x21\x01\x00\x00\x01\x00\x0D

Regex: .*\x21\x01\x00\x00\x01(\x00)?(\x01)?\x0D.*

Power On Command: \x21\x01\x08\x02\x10\x7B\x0D
Power Off command: \x21\x01\x08\x02\x10\x7C\x0D

Where do I start?
Any thoughts welcome
Nahshon

[Jarrod Bell]

Try this (untested):

https://gist.github.com/1789532

Jarrod

[Nahshon]

Thank you Jarrod,
I will try this today and let you know.
This will be my temple (meant template) for building future code as it
is basic decision and action.
Nahshon