Difficulty loading images using loadMovie

I am having difficulty loading images using variable names for images, and then loading the variable with loadMovie.

btn action:

p1_btn.btn_mc.onRelease = function() {
if (!(_root.image_1=“01.jpg”)) {
_root.smiles_image_1 = “01.jpg”;
_root.smiles_image_2 = “02.jpg”;
}
_parent._parent.mask.gotoAndPlay(2);

loader action:

this._parent.image_mc.image_1.loadMovie(_root.smiles_image_1);
this._parent.image_mc.image_2.loadMovie(_root.smiles_image_2);
this.onEnterFrame = function() {
filesize = this._parent.image_mc.image_1.getBytesTotal();
loaded = this._parent.image_mc.image_1.getBytesLoaded();
loader._visible = true;
if (loaded != filesize) {
loader.load_bar._xscale = 100*loaded/filesize;
} else {
loader._visible = false;
if (mask._alpha<99) {
mask._alpha -= 10;
}
}
};


If anyone has any suggestions

files
.fla
.swf
.html