javascript对表格的操作

点击单元格获取cellIndex, rowIndex, rows and cols.

<script language="javascript">
<!--
function knowIt(){
alert("cellIndex:"+event.srcElement.cellIndex+"; rowIndex:"+event.srcElement.parentNode.rowIndex+"; rows:"+event.srcElement.parentNode.parentNode.rows.length+"; cols:"+event.srcElement.parentNode.cells.length)
}
//-->
</script>

<table border=1 cellspacing=0 cellpadding=0 onclick=knowIt()>
<tr>
    <td colspan=2>11</td>
    <td>12</td>
    <td>13</td>
</tr>
<tr>
    <td rowspan=2>21</td>
    <td>21</td>
    <td>22</td>
    <td>22</td>
</tr>
<tr>
    <td>31</td>
    <td>32</td>
    <td>33</td>
</tr>
</table>