default
{
    state_entry()
    {
        llListen(1,"","","");
    }

    listen(integer channel, string name, key id, string message) 
    { 
        message = llToLower(message); 
         
        if(message == "show") 
        { 
	    llSetAlpha(1.0, ALL_SIDES); 
            return; 
        } 
        if(message == "hide") 
	{
	     llSetAlpha(0, ALL_SIDES); 
	}
}