Fatal error in relation to Javascript

[eluser]russ_kern[/eluser]
OK... First... I'm not intimately familiar with Javascript... although I'm learning it...

Where is it best to return false from?
I have tried a few different things... either they don't affect the page loading or nothing happens at all..

2 things I've tried (among others):

first was to change my links to an "onclick" event with return false tagged on the end...

Second was..

Code:

<a href="[removed]loadContenta(1); return false;" class="build">PCMO Product</a>

the first had no effect on the previous behaviour, the second - nothing happened at all.

Your help is really appreciated... I know this isn't a Javascript forum.

Russ