Ever want to use dropdowns, but you can’t because a Flash animation underneath the dropdowns shows through? We had this problem on multiple occasions. There is a simple solution. Make the Flash transparent by setting wmode=transparent in the code. Works every time.

I’m not sure if this will work with sIFR or not, or if sIFR even causes this problem, but I would recommend trying that first if you are stuck. You can set wmode to transparent in sIFR by adding wmode:"transparent" to the sIFR parameters.