Aligned MC, but stage to high

Hi, please click here: http://www.arkema-architects.com/espanol/arkematest.html

As you can see I could align the bar at the bottom to always stay there no matter the browser size, BUT my main movie is now too high, this is my code:

[AS]my_mc.onResize = function() {
var bounds = this.getBounds(this._parent);
var yoffset = this._y-bounds.yMax;
this._y = Stage.height+yoffset;
};
Stage.addListener(my_mc);
Stage.scaleMode = “noScale”;
Stage.align = “TM”;
my_mc.onResize();[/AS]

I know is because I used TM, but if I use “TL”, well, it goes TL!! but also too high, I need to move my stage to the very center of the stage but maintaining my bottom bar there. Any ideas? I tried Stage.align = “”; also but no luck…