[jQuery] Floating Ad stutters/blinks

I have an animated flash ad -- 12 frame bouncing ball test @12fps -- that moves across the screen. During the slide the animation becomes choppy in Safari and the animation doesn't advance past the first frame until the sliding stops in FireFox. How can I keep the animation smooth while the div is

[jQuery] Floating Ad stutters/blinks

I have an animated flash ad -- 12 frame bouncing ball test @12fps -- that moves across the screen. During the slide the animation becomes choppy in Safari and the animation doesn't advance past the first frame until the sliding stops in FireFox. How can I keep the animation smooth while the div is