changed event and linked objects

I have a table with several linked seats. I would like to detect when someone sits on a particular seat and give that person inventory. I have a script in each seat with a "changed" event. The problem comes in that the changed event fires in every chair when it fires in one chair. So, one person sitting down is okay. When the second one sits down, the first one gets a repeat gift.

changed(integer change)
    {
        if (change & CHANGED_LINK)
        {
            if (llAvatarOnSitTarget() != NULL_KEY)
            {
                AvatarSittingOnMe = llAvatarOnSitTarget();
                llGiveInventory(AvatarSittingOnMe, . . .);
                      . . . etc
            } else
            {
                AvatarSittingOnMe = NULL_KEY;
                       . . . etc
                
            }
        }
    }

Any ideas for how to change this?

Baron Hauptmann

Something like this:

changed(integer change)
    {
        if (change & CHANGED_LINK)
        {
            AvatarSittingOnMe = llAvatarOnSitTarget();
            if (NULL_KEY != llAvatarOnSitTarget())
            {
                if (!GaveGift)
                {
                    llGiveInventory(AvatarSittingOnMe, . . .);
                    GaveGift = TRUE;
                 }
                 //     . . . etc
            }
            else
            {
                GaveGift = FALSE;
                //       . . . etc
            }
        }
    }

Thanks, Angela. I'll try that. There are some other things that go on, too, but just having a global variable might keep it from triggering the event multiple times when it shouldn't.

Baron