Masking Duplicated Movie Clips (HELP!!)

[Iamba]

I have an array of thumbnails that I create through duplicated movie clips and loading jpegs into the clips. I have more jpegs than I do space in the strip I am using to display them however and I wanted to create a mask for each of the thumbnails so they would only be visible in the center of the strip.


duplicateMovieClip(_parent.thumbStrip.ImageButtons , "ImageButtons"+i, i);
duplicateMovieClip(_parent.thumbStrip.mask, "mask"+i, (i+totalImages));
_parent.thumbStrip["ImageButtons"+i].loadMovie("Thumbs/"+ _parent.slideImage[i]);
_parent.thumbStrip["ImageButtons"+i].setMask(_parent.thumbStrip["mask" + i]);


When I run this, the movieclips are simply duplicated above the thumbnails and do not act as masking layers. I don't want the masks to be visible, I just want them to act as a window. I've searched the forums and the links I have found don't quite relate to this approach that I can tell.

Any suggestions as to what I am doing wrong, and is this question clear?

[Iamba]

duplicateMovieClip(_parent.thumbStrip.ThumbNail, "ThumbNail"+i, i);
duplicateMovieClip(_parent.thumbStrip.mask, "mask"+i, (i+tImages));
_parent.thumbStrip["ThumbNail"+i].ThumbImage.loadMovie("Thumbs/"+ _parent.slideImage[i]);
_parent.thumbStrip["ThumbNail"+i].setMask(_parent.thumbStrip["mask" + i]);

Apparantly this works. I embedded the movie for the loaded jpegs inside the movie to be masked. I assume that if you load a jpeg into the highest level of a movie clip it cannot be masked? Oh well... Hopefully this can help someone else, I stumbled into this while trying to fix another issue. Thanks to everyone who took the time to read this. :)