Well, for one thing you shouldn't give reserved words (like "name") as the name or id of any object.
<select name="selector" onchange="document.formname.color.value = this.value">
<input type="text" name="color" value="">
is the name of the form that these are nested within.
If anyone knows of a website that can offer ColdFusion help that isn't controlled by neurotic, pedantic jerks* (stackoverflow.com), please PM me with a link.
* The neurotic, pedantic jerks are not the owners; just the people who are in control of the "popularity contest".