extension functions set up

[Wade, John F. (MSFC-NAS902099)[TBE]]

I need to create an extension function.  I'm working off the example material 
on the http://xml.apache.org/xalan-j/extensions.html#ex-java page.  In the 
xalan:component script definition, I see src="xalan://MyCounter/".  Where do I 
put the MyCounter.java file?  I've tried everywhere I can think of and keep 
getting a "java class not found" error.
 
*********************************
John F. Wade, PE
TBE
EO20 - MSFC iPV Integration Lead