HTML - Ie8 Hack

I'm developing a website at http://beta.ponderosatreeservice.com and use some background PNG's with transparency. I'm using a hack right now which allows an embedded image to display correctly but it doesn't work with background images. I've found a few hacks online which I haven't tried but I was wondering if there was any type of consensus here as too which hack is the best for background PNG images.

I've seen it alot of places, though I cannot seem to get my hand on how it works (as I never think about checking the source when I DO see it!)..

How can I get one <select> field option to control another?

Like, say I have a list with:
1 2 3 4
and a list with:
A B C D
..and when I select "3" in the first list, I want the second list to AUTOMATICLY change to "C".

How do I accomplish this?

Hi

I have a website I'm working on that relies on transparent PNGs.

The website is: http://www.percept.com.au/testing/planeteve/index1.html

I have used the IE hack IE PNG Fix ( http://www.twinhelix.com/css/iepngfix/)
which is working well, except it flashes a white background up while the transparency loads - which looks really ugly.

It is really important I can fix this flash of white, so if anyone can help me, it would be greatly appreciated.

Thanks in advanced.
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