Script for "button content"

Hi everyone...
I was wondering if anyone knew a way to script buttons in a HUD so that once they had been "clicked", and their action performed, they would then grey out and be unusable again until the HUD was reset.
Any suggestions would be hugely appreciated.
Equally, is it possible to add a script to a HUD so as it can "recognise" another similar?
Apologies if these are "amateur" questions, but totally new to scripting.
Thanks in advance.

Definitely possible and not too difficult. All you'd need to do is something like change the texture of the button face to your "grayed out" version. Then add a check in your code that handles the click to check if it's disabled and if so, bail out. You will need to define some kind of "button enabled" variable and set that flag whenever you want to enable/disable the button.

...or change states in the script that handles the touch so that it doesn't even have a touch handler. If multiple scripts in the prim handle touches, you might want a central coordinating on that pauses the others (probably after a short delay so they can all do their thing before they're put out of commission). If that doesn't work, you might have to put logic in each of them, unfortunately.

Thanks Scott, Hewee.......looks like the next step is learning how to sort variables.....actually, plunging in to learning how to SCRIPT. Appreciated.

In that case, to get you started here are some links that are probably relevant...

http://www.lslwiki.net/lslwiki/wakka.php?wakka=llSetTexture
http://www.lslwiki.net/lslwiki/wakka.php?wakka=touch_start

Instead of changing to a disable texture, you could also consider simply change the color or alpha on the button prim. Just to save you another L$10 and to load another texture.

Thanks for the suggestion Klug...but for its purpose, I need it disabled, so the script IN the button is a one use only each time.