I think that this feature is only available in the HTML 3.0 standard. The
code for it would be, as of right now, is:
<FORM METHOD="POST" ACTION="script path"
<INPUT NAME="YourName"><P>
<INPUT TYPE="submit" SRC="image path"
</FORM>
Don't rely on this, since I don't think any browsers currently support this
feature yet. When HTML 2 becomes standard, it will.
Mike