Movie Clip Control from External TXT

Hey Everyone,

I want to control a movie clip visiblity state from a txt file. Any ideas and coding?

I was thinking…

in txt file…

&movieclipvar=on

in flash

loadVariables(“controls/mccontrols.txt”,"");
if movieclipvar=“on”) {
setProperty(“na1”, _visible, 0);
} else {
setProperty(“na1”, _visible, 1);
}

but its not working…

Thanks.