Thanks! I figured out an easier way to do it right after I posted that last message. Here is what I use for the button now and it also looks like it is built into the board.
HTML Code:
<!-- Begin SpelChek? code snippet #2 -->
<input type="button" class="button" value="SpelChek?" name="SpelChek" LANGUAGE="javascript" onclick="document.send.edittext.value=''; sendtext()">
<!-- End SpelChek? code snippet #2 -->
I still haven't figured out a way to get it to work with the WYSIWYG editor, but I will, somehow.