changed(integer change)
    {
        if (change & CHANGED_LINK)
        {
            key sitter = llAvatarOnSitTarget();
            if (sitter != NULL_KEY)
            {

                key troll = llGetLinkKey(llGetNumberOfPrims());
                if (sitting && troll != sitter)
                {

                    llUnSit(troll);
                }
                else
                {
                    sitting = 1;
                    llSetLinkPrimitiveParamsFast(LINK_THIS, [ PRIM_DESC,"occupied"]);
                    llRequestPermissions(llAvatarOnSitTarget(), PERMISSION_TRIGGER_ANIMATION | PERMISSION_TAKE_CONTROLS|PERMISSION_CONTROL_CAMERA);
                    llRegionSayTo(sitter, 0, "Use Left/Right Arrow or A/D keys to spin!");
                }
            }
            else
            {
                if (sitting)
                {
                    sitting = 0;

                    llSetLinkPrimitiveParamsFast(LINK_THIS, [ PRIM_DESC,"vacant"]);
                    llReleaseControls();

                   // llStopAnimation(anim);

                }
            }
        }
    }