play sound randomly

i really need a script, that will play one sound at random intervals without touching the object. i have tried some i have found round the place, but often get errors.
I am really "script-illiterate"... can someone please help.

Well you obviously need a timer.

One was I have seen used is to create a random chance that a sound will play each timer event...
timer()
{
integer chance = 0.8;
if (chance < llFrand(1.0))
{
llPlaySound(sound, 0.25); //1.0 can be heard half way across a sim
}
}


or you could try adjusting the timer event...

timer()
{
llPlaySound(sound, 0.25);
llSetTimerEvent(llFrand(5.0));
}