float f_alpha = 0.0;
float f_step = 0.1;


default
{
    on_rez(integer start_param)
    {
        llSetAlpha(0.0,ALL_SIDES);
        llResetScript();
    }
    state_entry()
    {
        llSetAlpha(0.0,ALL_SIDES);
        llListen(1,"",llGetOwner(),"");

    }
    timer()
    {
        f_alpha += f_step;
        if (f_alpha+f_step < 0.0) {f_step = -f_step;} llSetAlpha(f_alpha,ALL_SIDES);

    }
    listen(integer c, string n, key k, string m)
    {
        if(m=="show") {llSetTimerEvent(0.05);}
        if(m=="hide") {llSetTimerEvent(0.0); llSetAlpha(0.0,ALL_SIDES);llResetScript();}
    }

}