Just for further consideration, from
"Developing with Web Standards" by
Jeffrey Zeldman:
An id value must begin with a letter or an underscore; it cannot begin with a digit. The W3C validation service might not catch this error, but an XML parser will. Also, if you intend to to use an id with JavaScript in the form document.idname.value, you must name it as a valid JavaScript variable; that is, it must begin with a letter or an underscore, followed by letters, digits, and underscores. No blanks, and especially no hyphens, are allowed.
I guess that might be what was causing the problems here.
