PreLoader Help Needed

Im needing assistance, I have the following script for my preLoader (see below). Its a simple preLoader with a loading bar that goes from left to right with a percent read out.

What I want is the percent text box to move along the [COLOR=Magenta]_x[/COLOR] with the load bar, so when the load bar is at 100% the percent text box is just above.

Can anyone help??

[COLOR=Navy]myInterval = setInterval(preloader, 10);
function preloader() {
if (_root.getBytesLoaded()>=_root.getBytesTotal()) {
_root.loadBar._xscale = (_root.getBytesLoaded()/_root.getBytesTotal())*100;
_root.percentageDisplay.text = Math.round(_root.getBytesLoaded()/_root.getBytesTotal()*100)+"%";