function showMe(id) {
  var elem = document.getElementById(id);
  elem.style.visibility = "visible";
  elem.style.display = "block";
 }
 function BlockMe(id) {
 var elem = document.getElementById(id)
 elem.style.visibility = "hidden";
 elem.style.display = "none";
 }

/*<tr><td colspan="2" align="center"><input name="submit" type="submit" value="submit" onclick="this.disabled=true; showMe('Layer6');"><input name="reset" type="reset" value="reset" onclick="submit.disabled=false; BlockMe ( 'Layer6' );"></td></tr>
</table>
*/