DOCBOOK: Customizing the nav-banner in modular stylesheets?

I've written a series of docs in DocBook and am using the nwalsh-modular 
stylesheets to produce HTML output. Is it possible to substitute graphics 
for the navigation links?

I was thinking something along the lines of the following in my HTML output:
NEW: <a href="prevtopic.html"><img src="prev.png"></a>
CURRENTLY: <a href="prevtopic.html">Previous</a>

I figure there are two possible solutions that'll work for me:
1. Alter my customized stylesheet (.dsl) to put graphics in instead of 
text. I imagine this would work like the admon-graphics t setting used 
elsewhere. I'm still quite fuzzy on the stylesheets, and didn't have a lot 
of luck digging through dbnavig.dsl to find what I need....Ideas?

2. Write a quick script to run on the output HTML files to substitute the 
image ref for the words Previous, Next, and Home. I figure this will work, 
but am aware it is a quick and dirty solution.

So, how should I go about this?

Meg


Megan Golding     |  
Technical Writer  |  SecureWorks, Inc.

"Tell me and I'll forget. Show me, and I may not remember. Involve me, and 
I'll understand."  - Native American Proverb