Fade in fade out effect

I have created a movie clip n inside that symbol i have created a animation of motion tweening n gave fade in and fade out effect .
I want to do something different like if click or roll over the mouse in one object or say image i want to blur other images.
FOR EXAMPLE take a web site where if i click ABOUT US then the other s should be blurred .
hope so i did explained it carefully n in detail . THANKS for any help offered.