Keep Flash Behind Other Elements
For example, a dropdown menu going "behind" a flash movie, or staying on top of a lightbox layover.
Try This #1
Add this to the Flash embed code:
<param name="wmode" value="transparent">
Try This #2
Make sure the element that is supposed to be on top has positioning (fixed, relative, or absolute) and a z-index value higher than the Flash object.
*May or may not contain any actual "CSS" or "Tricks".