动态表格，通过按钮增加行，删除时删除选择的checkbox那一行

<script>
//给table增加一行
function addTableRow() {
 var table1 = document.getElementById('table1');
 var cloneTab = document.getElementById('table2');
 //alert(cloneTab.firstChild.firstChild.innerHTML);
    //alert(cloneTab.firstChild.firstChild.cloneNode(true).innerHTML);
 table1.firstChild.appendChild(cloneTab.firstChild.firstChild.cloneNode(true));

 var v= table1.firstChild.childNodes;
 var len = v.length;
 for(var i=1;i<len;i++){
  v[i].childNodes[0].firstChild.id=i;//给第一个单元格id赋值
 }
}

//给table删除一行
function delTableRow(){
 var table1 = document.getElementById('table1');
 var isChecked = document.getElementsByName('isChecked');
 var len = isChecked.length;
 for(var i=len-1;i>=0;i--){
  if(isChecked[i].checked==true){
    table1.firstChild.removeChild(isChecked[i].parentNode.parentNode);
   //alert(isChecked[i].id);
   //alert(isChecked[i].parentNode.parentNode.innerHTML);
  }
 }
}
</script>

《
<!--显示table-->
 <table border="0" cellpadding="0" cellspacing="0" class="datalist" id="table1">
    <tr>
      <th width="38" nowrap="nowrap" style="width: 5%">0</th>
      <th width="38" nowrap="nowrap" >00</th>
      <th width="79" nowrap="nowrap" scope="col">1</th>
      <th width="70" nowrap="nowrap" scope="col">2</th>
      <th width="69" nowrap="nowrap" scope="col">3</th>
      <th width="66" nowrap="nowrap" scope="col">4</th>
      <th width="94" nowrap="nowrap" scope="col">5</th>
      <th width="107" nowrap="nowrap" scope="col">6</th>
    </tr>
</table>

<!--控制table的按钮-->
  <table>
      <tr align="center">
        <td colspan="10">
          <input type="button"  value="增加" onclick= "addTableRow();"/>
          <input type="button"  value="删除" onclick="delTableRow();"/>
        </td>
     </tr>
  </table>

<!--模板table也叫做clone table style = "display:none"-->
  <table id='table2' style="display: none">
  <tr>
    <th><input type="checkbox" name="isChecked" /><input type="hidden" size="6" value=""/></th>
    <th width="38" nowrap="nowrap" style="width: 5%"><input type="text" size="16" maxlength="50" value=""/></th>
    <th width="79" nowrap="nowrap" scope="col"><input type="text"  size="16" maxlength="50" value=""/></th>
    <th width="70" nowrap="nowrap" scope="col"><input type="text"  size="6" maxlength="10" value=""/></th>
    <th width="69" nowrap="nowrap" scope="col">
          <select size="1">
     <option value="">请选择...</option>
     <option value="1">1</option>
     <option value="2">1</option>
         </select>
        </th>
    <td width="100" nowrap="nowrap" scope="col"><input type="text"  class="date150"/></td>
    <th width="94" nowrap="nowrap"  scope="col"><input type="text"  size="16" maxlength="50" value=""/></th>
    <th width="71" nowrap="nowrap"  scope="col"><input type="text"  size="16" maxlength="50" value=""/></th>
  </tr>
  </table>