Desperate for help!

[mcerts]

I am very new to AS3 and Flash in general. I found a preloader on iStock that I want to use on a microsite I'm creating, but it's in AS2. I need to convert the following code to AS3 and I keep getting errors left and right. Can someone please convert it for me? Thanks in advance for your help!

line._xscale = 0;
var demovar:Number = 0;
_root.onEnterFrame = function() {
if (!_root.DEMO) {
total = _root.getBytesTotal();
loaded = _root.getBytesLoaded();
percentage = Math.round((loaded*100)/total);

line._xscale -= (line._xscale-(percentage+1))/4;
if((line._xscale*300/100-36)>0){
txt._x =line._xscale*300/100-36;
}

txt.text = percentage+"%";
if (percentage>99) {
_root.play();
delete onEnterFrame;
}
} else {
if (demovar<100) {
line._xscale -= (line._xscale-(demovar+1))/4;
txt.text = int(demovar += .3)+"%";
if((line._xscale*300/100-36)>0){
txt._x =line._xscale*300/100-36;
}
}
if (demovar>100) {
_root.play();
delete onEnterFrame;
}
}
};
stop();

[neznein9]

AS2 and AS3 are pretty far apart when it comes to the way preloaders are structured...take a look at gotoAndLearn's tutorial - it's probably easiest to go with that and just copy over the animation and objects from the istock file.