llDialog unpacker with group check

integer gListener;
string invobj;

default
{
    state_entry()
    {
    }

    touch_start(integer total_number)
    {
        key id = llDetectedKey(0);
        llListenRemove(gListener);
        gListener = llListen(-99, "", id, "");
        llDialog(id, "\nWould you like to unpack this?.", ["Yes", "No Thanks" ] , -99);
        llSetTimerEvent(60.0);
    }

    listen(integer chan, string name, key id, string msg)
    {
        integer sameGroup = llSameGroup (id);
        invobj = llGetInventoryName (INVENTORY_OBJECT,0);
        if (sameGroup)
        {
            if (msg == "Yes")
            {
                llGiveInventory (id, llGetInventoryName(INVENTORY_OBJECT, 0));
            }
            if (msg == "No Thanks")
            {
                //Do Nothing
            }
        }
        else
        {
            llSay(0, "You need to be in the required group to use this.");
        }

        llSetTimerEvent(0.1);
    }

    timer()
    {
        llListenRemove(gListener);
        llSetTimerEvent(0.0);
    }
}