ActionScript 2.0 :: Use Two Components To Collectively Produce A Result From An Array?

PHP Code:

function spaceCalc() {//selected item from a list trace(mainList.value); //selected item from a group of radio buttons trace(sizeGroup.selectedData);//trying to make it realise that mainList.value is the name of an arraytrace(mainList.value[sizeGroup.selectedData]);}

I'm trying to use two components to collectively produce a result from an array. This is what I have so far...

PHP Code:

function spaceCalc() { object = mainList.value;objectB = sizeGroup.selectedData; trace(objectA[objectB]);}