opacity Options

[Smarmosaur]

i don't know if this is possible, but is there any way to make the white table background thingy translucent?

http://www.myspace.com/animatedheart

to explain a little more, i want the white background (and the top blue area, although i'm going to change the color) to be translucent (preferably like 50% strong), but only the background. i want the rest of my tables and such to stay just as they are.
catch my drift?

thanks in advance. :]