[jQuery] Overlapping divs & toggleContent function

[jQuery] Overlapping divs & toggleContent function

Hi folks,
I'm having a problem in FF2 with the contents of a "toggled" div
overlapping two divs below it.
The problem (http://horticulture127.massey.ac.nz/dumpthis.htm) occurs
when the [Glossary] link is clicked to reveal an input box for a
glossary search.
In IE6, two divs beneath are "pushed" down (as I would like them to
be), but in FF2, the glossary search box simply overlaps the lower divs.
I cannot see the error I'm making - can someone please point me in
the right direction.
Cheers,
Bruce
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