IE Form/Javascript Issues

I know I’m posting way too many threads in here lately - just getting into Javascript and it’s essentially KILLING ME.

Okay so without posting any code because I assume this is a common issue how do I fix this:

The part hidden behind the form is a javascript dealie that only appears when you click the field. It’s set to z-index of 5000 so it should be well above everything.

I’ll post code if I need, but the code is a freaking mess.

Any help would be stellar.