Quick question about "continuity"

programming flash
1

first i show the code:


//the MovieClipLoader object and other variables are cropped
//---------------------------------------
all.onRelease = function() {
    changingImg();
};
//-----loading methods
stickerLi_2.onLoadComplete = function(holder) {//if image is loaded
    holder.onEnterFrame = fadeIn; //fade in
    if (currentImg == 1) {
        currentImg = 2;
    } else if (currentImg == 2) {
        currentImg = 1;
    } else {
        currentImg = 1;
    }
};

//-----Functions
function changingImg() {
    image = all.stick1.image;
    image.onEnterFrame = fadeOut; //fade out image
    if (image._alpha<1) { //if faded out, load image
        if (currentImg == 1) {
            stickerMCL_2.loadClip(sub+images[0],image);
        } else if (currentImg == 2) {
            stickerMCL_2.loadClip(sub+images[1],image);
        } else {
            trace("Error");
        }
    }
}
function fadeIn() {
    this.onEnterFrame = function() {
        this._alpha += 20;
        if (this._alpha>99) {
            delete this.onEnterFrame;
        }
    };
}
function fadeOut() {
    this.onEnterFrame = function() {
        this._alpha -= 20;
        if (this._alpha<1) {
            delete this.onEnterFrame;
        }
    };
}

ok, what i am hoping to achieve is, when i click, the image fades out, then load in another image, then fade in again. It is working, but I have to click again to fade the image in. I want it to be continuous. What’s wrong here? Shouldn’t the onLoadComplete method be called automatically after the image is loaded?