Replacing span contents when a class name is matched in .net 2.0 (c#)

Question

Hello

I want to parse some HTML server-side, and if a DIV has a particular class, we replace the contents of that div with some new information.

For example if we have:

<div class="was"><span class="replacevalA"><strong>£99.99</strong></span></div>

We might want to replace the £99.99 to be <em>£79.99</em> leaving us with:

<div class="was"><span class="replacevalA"><em>£99.99</em></span></div>

The reason I've opted for class name is that we might have several replacevalA in the HTML as well as replacevalB too.

Hope that makes sense :)

Many thanks

Darren