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<form name="mainform" action="webapp.cgi?rm=mode9" method="post">
<textarea name="text_field" cols="60" rows="20"><TMPL_INCLUDE NAME="me
+nu.tmpl"></textarea>
<br>
<button type="submit">Update</button>&nbsp;&nbsp;&nbsp;&nbsp;<button t
+ype="reset">Reset Form</button>
</form>

sub save_form {
    my $self = shift;

...
    # go back to the beginning
    return $self->run_mode( 'mode1' );
}