HUD code

integer channelNo = -730441;
integer listenHandle = 0;
remove_listen_handle() {
    if (listenHandle)
        llListenRemove(listenHandle);
}

default {
    attach(key id) {
        if(id) {
//            llRegionSayTo(llGetOwner(),channelNo,"Attached");
            listenHandle = llListen(channelNo, "", llGetOwner(), "");
        } else remove_listen_handle();
//            llRegionSayTo(llGetOwner(),channelNo,"Detached");} listen (integer c, string n, key id, string msg){if(msg=="ack") llRegionSayTo(llGetOwner(),channelNo,"Attached");

    }
    listen(integer chan, string name, key id, string msg) {
        if (msg == "Attached") llOwnerSay("watch attached");
    }
/*    state_entry()
    {
        llSay(0, "Hello, Avatar!");
    }

    touch_start(integer total_number)
    {
        llSay(0, "Touched.");
    } */
}