[horde] alpha transparency in IE 6.0.2600

[Ernest Hymel, MD, PhD]

First, thanks to everyone working on this project for a fantastic product.

After update by cvs last night (previous update about one week ago) I'm seeing a
strange occurrence that looks like it's tied to IE's alpha transparency. I'm
running horde-3.0cvs per test.php. Browser is 6.0.2600 and I can't change it in
my work environment. The problem is this:

When may pages first load they look good but then all icons (that look as usual)
are quickly replaced by a blank image (blank.gif, to be exact). This is
consistent with an onLoad function. I can follow that much but don't know how
to fix the problem, which seems to be in the
horde/templates/javascript/alpha_filter.js file. Per cvs.horde.org, looks like
this file has changed a few times lately.

By the way, the folder icons on cvs.horde.org do the same thing.

Thanks again.

E. Hymel