form help & Opera

I just downloaded the beta version of Opera and checked my web site on it.
Right away I had a problem that I need help with. I have a navigation form
that won't function on Opera; it works fine on IE 5.

Opera said the script won't run because:
"cannot convert undefined or null to object"

When I ran it through a validator it said that the button lacked a name
attribute, so I arbitrarily called it name="go" (because I didn't know what
that attribute did).

I ran it through the html Tidy validator and the page came out clean.
The drop down menu form still won't work in Opera.

It still works in IE5.

The url is: <http://www.capecod.net/~spiral/index.html>
Will someone take a look at my source and tell me what Opera means by
"cannot convert undefined or null to object" and how to fix it, please.

TIA
Edward Harper
--------------------
 "I have no use for guilt, yours or my own...guilt is just another excuse
for inaction."
       --Audre Lorde

HWG hwg-techniques mailing list archives, maintained by Webmasters @ IWA