Many times a form that works perfectly well on a table-less Web page stops working when inserted into a table cell. To make the form work again, move the <FORM> and </FORM> tags so that they span the <TABLE></TABLE> tags, as shown in the following HTML code:
<BODY BGCOLOR="#FFFFFF" TEXT="#333333" LINK="#0000CC" VLINK="#CC0000" ALINK="#6666FF">
<FORM ACTION="validate.html">
<TABLE WIDTH="50%" BORDER="1">
<TR>
<TD>
<H2 ALIGN="center">Spam Removal Form</H2>
</TD>
</TR>
<TR>
<TD>
<P>Enter full name
<INPUT TYPE="text" NAME="name">
<BR>
Enter e-mail address
<INPUT TYPE="text" NAME="email">
<BR>
I do not want to receive spam e-mail
<INPUT TYPE="checkbox" NAME="nospam" VALUE="checkbox">
</P>
<P>
<INPUT TYPE="submit" NAME="Submit" VALUE="Submit" ONCLICK="processForm()">
</P>
</TD>
</TR>
</TABLE>
</FORM>
</BODY>