onRollOver Alpha Fade In

programming flash
1

I have this swf that once your hover over the button it loads a picture and a logo. All the pictures are contained in their own mc. I would like to have these pictures fade (not the logo) once that button is hovered in action script. Here is my AS

loadPictures = function(pictures) {
contentHold.removeMovieClip();
contentHold.attachMovie(pictures,“contentHold”,getNextHighestDepth());
}

loadLogo = function(logo) {
test_movie.removeMovieClip();
this.attachMovie(logo, “test_movie”, getNextHighestDepth());
test_movie._x=225;
test_movie._y=217;

}

loadPictures(“mcContent1”);

loadLogo(“mcChambersburgh”);

b1.onRollOver = function() {
loadLogo(“mcChambersburgh”);
loadPictures(“mcContent1”);
};

b2.onRollOver = function() {
loadLogo(“mcLancaster”);
loadPictures(“mcContent2”);
};

b3.onRollOver = function() {
loadLogo(“mcClearview”);
loadPictures(“mcContent3”);
};

b4.onRollOver = function() {
loadLogo(“mcLindwood”);
loadPictures(“mcContent4”);
};

b5.onRollOver = function() {
loadLogo(“mcResidence”);
loadPictures(“mcContent5”);
};

b6.onRollOver = function() {
loadLogo(“mcPines”);
loadPictures(“mcContent6”);
};

b7.onRollOver = function() {
loadLogo(“mcLane”);
loadPictures(“mcContent7”);
};

b8.onRollOver = function() {
loadLogo(“mcRexford”);
loadPictures(“mcContent8”);
};

b9.onRollOver = function() {
loadLogo(“mcHeights”);
loadPictures(“mcContent9”);
};

b10.onRollOver = function() {
loadLogo(“mcRun”);
loadPictures(“mcContent10”);
};

Any Thoughts would be great.

Thank you ahead of time