Flash as2 puzzling movieClip location. Take a look please

Really simple, I have 9 movieClips on the main timeline. Alpha’s all set to zero. All set to export to actionscript. Each movieClip is named(spot1, spot2…spot9). When I test the movie, I am trying to get my spider_mc to randomly attach to one of the spots. Here is the code I am working with so far on the main timeline:

function spiderLocation() {
_root.attachMovie(“spider_mc”, “spider_mc”,spider_mc.getNextHighestDepth());
var randomSpot:Number = Math.floor(Math.random()*9);
spider_mc._x = [“spot”+randomSpot]._x;
spider_mc._y = [“spot”+randomSpot]._y;
}

No errors, however the spider_mc which I am trying to call from the library is not appearing in any of the spot1 through spot9 locations.