[Javascript] submit a form with Javascript

[garry taylor]

Hi,
	This may seem a bit of a dumb question, but how can I submit a form 
using Javascript? Right now I am using onSubmit="myform.cgi" in my form 
tag. This works fine, but now I want to check a few form elements beofre 
it gets submitted, so presumably, I make myself a Javascript function 
which gets called by onSubmit(). But when inside onSubmit(), and I have 
verified my form elements, how do I then call myform.cgi?

I suppose it's obvious to you guys, but I can't find how to do it!

Thanks

Garry