Validation Errors after placing Fireworks html - ?

Question

I search for an explanation and hope this  has not been beaten enough already BUTI ask for some help.
It was pointed out to me that a site I have been updating has 21 errors after looking at  The W3C Validation as I peruse the perhaps embarrisingly long list - I note that all but a few are due to errors in my placed fireworks html - used for menus etc.
Line 120,         Column 117:     ID "undefined_2" already defined…"" name="undefined_2" width="93" height="1" border="0" id="undefined_2" /></td>
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An "id" is a unique identifier. Each time this attribute is used in a document       it must have a different value. If you are using this attribute as a hook for       style sheets it may be more appropriate to use classes (which group elements)       than id (which are used to identify exactly one element).
Almost all the errors revolve around undefined
<td><img src="_images/New navhead/spacer.gif" alt="" name="undefined_2" width="15" height="1" border="0" id="undefined_2" /></td>
I would like to correct the error but am at a loss as to how to resolve it - I don't recall seeing any suggestions when making the menu, or a place for input to define  (if I could)
the pages were defined as xhtml 1.0 transitional
Yes this may sound like a plea for help - And thank you for your patience and help
Greg

Answer 1

"Easier" doesn't always mean "better".  If you take a look at the code you've supplied, you'll see that this is being caused by the inclusion of spacer gifs - which also means a table based layout as well - again, not best practices. The source code on the sample site you've provided is quite bloated for just that top menu and a great deal of that code is just for spacer gifs to hold the table open.
If you're builidng sites professionally I'd recommend learning how to do  things in a best practices manner and generally that means using an unordered list along with CSS for styling the navigation. You'll waste more time trying to fix the FW menus than you will learning to do things in a best practices manner. Way less code and a much more accessible menu. It's not that hard; I can get students creating CSS menus in under 3 hours when they've never done it before. If you're looking for easy without digging into the code yourself, consider commercial options such as the huge variety of CSS-based menus found at projectseven.com. They're well made, accessible and plug into Dreamweaver.
If it's just a hobby, then don't worry about it. As long as it works, you're fine.