ขอโค้ดระบบสมาชิก และวิธีที่สามารถเพิ่มสมาชิกได้ที่ละหลายๆคนในครั้งเดียว

<?// เพิ่มแถว ลดแถว?>
 <SCRIPT language="javascript"> 
 function addRow(tableID) {
 var table = document.getElementById(tableID);
 var rowCount = table.rows.length;
 var row = table.insertRow(rowCount);
 var colCount = table.rows[0].cells.length;
 for(var i=0; i<colCount; i++) {
 var newcell = row.insertCell(i);
 newcell.innerHTML = table.rows[0].cells[i].innerHTML;
 //alert(newcell.childNodes);
switch(newcell.childNodes[0].type) {
 case "text":
 newcell.childNodes[0].value = "";
 break;
 case "checkbox":
 newcell.childNodes[0].checked = false;
 break;
 case "select-one":
 newcell.childNodes[0].selectedIndex = 0;
 break;
 }
 }
 }
function deleteRow(tableID) {
 try {
 var table = document.getElementById(tableID);
 var rowCount = table.rows.length;
 for(var i=0; i<rowCount; i++) {
 var row = table.rows[i];
 var chkbox = row.cells[0].childNodes[0];
if(null != chkbox && true == chkbox.checked) {
if(rowCount <= 1) {
 alert("Cannot delete all the rows.");
 break;
 }
 table.deleteRow(i);
 rowCount--;
 i--;
 }
 }
 }catch(e) {
 alert(e);
 }
 }

 </SCRIPT>
<form>
<table width="26%" border="0"   align="center" id="dataTable">  
  <tr>
    <td width="4%" ><INPUT name="chk" type="checkbox" id="chk"/></td>
    <td width="31%" ><input type="textbox" name="txt1[]"></td>
    <td width="65%" ><input type="textbox" name="txt2[]"></td>
  </tr>
</table>

  <table width="299" border="0" align="center">
    <tr>
      <td width="293"><div align="center">
          <input type="button" value="Add Row" onClick="addRow('dataTable')" />
          <input type="button" value="Delete Row" onClick="deleteRow('dataTable')" />
          <input type="hidden" value="OK" name="SAVE">
          <input type="submit" value="SAVE"  >
      </div></td>
    </tr>
  </table>
</form>