checkboxList 全选的代码

<script language="javascript" type="text/javascript">
var selectAllFlg = false;

function selectAll() {
	var list = document.getElementById("waveDataListTable").getElementsByTagName("input");
	
	for (var i = 0; i < list.length; i++) {
		var ctrl = list[i];
		
		if (ctrl.type == "checkbox") {
			var s = selectAllFlg ? ctrl.checked = false : ctrl.checked = true;
		}
		
	}
	
	selectAllFlg = !selectAllFlg;
}
</script>

  <table id="waveDataListTable" width="800" border="1">
  <tr>
    <td width="42" height="36">No</td>
    <td width="340">名称</td>
    <td width="292">测试号</td>
    <td width="98">选择<br />
      <u>
	  <a href="javascript:selectAll();">（全选/取消）</a>
	  </u>      </td>
  </tr>
  <tr>
    <td>1</td>
    <td>Vibration_01</td>
    <td>channel_01</td>
    <td>
      <input type="checkbox" name="checkbox[0]" value="checkbox" />    </td>
  </tr>
  <tr>
    <td>2</td>
    <td>Vibration_01</td>
    <td>channel_02</td>
    <td><input type="checkbox" name="checkbox[1]" value="checkbox" /></td>
  </tr>
  <tr>
    <td>3</td>
    <td>Vibration_01</td>
    <td>channel_03</td>
    <td><input type="checkbox" name="checkbox[2]" value="checkbox" /></td>
  </tr>
</table>