Making script listen

I have been bouncing my head off this one for a couple of months and finally was able to sit down and try to figure out how I can make this script here listen and work. I know it already uses llListen on a channel of 14712. Ok I should be able to some how trigger this script with a channel command to turn the lights on or off. here's the script. maybe somebody will have the answer

default
{
    state_entry()
    {
        llSetStatus(STATUS_BLOCK_GRAB | STATUS_PHANTOM, TRUE);
        llListen(14712, "", "", "");
    }
 
    listen(integer chan, string name, key id, string mess)
    {
        //llSay(0, "left light heard something");
        vector color = (vector)mess;
        llSetColor(color, ALL_SIDES);
        if (llVecMag(color) == 0.0)
        {
            llSetAlpha(0.0, ALL_SIDES);
        }
        else
        {
            llSetAlpha(0.9, ALL_SIDES);
        }
    } 
}

Try typing the following line into your chat box:

/14712 <1.0, 0.0, 1.0>

That should make it a nice pink color. The bit between and including the angle brackets has the same syntax as a vector in LSL, and represents a color using RGB components between 0.0 (none of the component) and 1.0 (full intensity for that component). See http://www.lslwiki.net/lslwiki/wakka.php?wakka=color

EDIT:

dam you hewee beat me to another post XD

^^ thank you so much. I am brain dead today and it puzzled me. Thank you