Dynamikally loaded images blink

I load images dynamically from the xml.

I use this function:

{ eval(“holder”+num).clip_mc.loadMovie(path+pageImage[imageLoaded]);
(num<2) ? imageLoaded++ : imageLoaded+0;
if (imageLoaded+1>imagesNum)
{ imageLoaded=0; }

where holder.clip_mc - mask for the imageholder. I have 2 of them
on the stage for 2 masks,
pageImage -array of images from the xml,
imagesNum - array length,
imageLoaded - index of image that’s already been loaded.

When I load new image in the placeholder, it blinks first. Where the problem can be? Help me, please.