I am a webmaster for a scientific/engineering community of modelers of ground water hydrology (www.analyticelements.org).  I have successfully created a wiki page (www.analyticelements.org/mediawiki), but have been frustrated getting math (LaTeX) to work (see the Math Toolbox).  A friend of mine told me to check out jsMath and Wikka.   I am making progress, but I need help in getting the jsMath operational.   Check out my progress at
http://www.analyticelements.whsites.net/Wikka/HomePage, then see my tests in the Sandbox.  I have followed the guidance on JSMathIntegration.
Steve Kraemer
Athens, GA USA