JavaScript DHTML/Table/Column
"axis" Example: Group Column
<html>
<body>
<table border="1" summary="time report">
<caption>table caption</caption>
<tr>
<th> </th>
<th id="head1" axis="hours">cell 1</th>
<th id="head2" axis="hours">cell 2</th>
</tr>
<tr>
<th id="a6" axis="name">name</th>
<th> </th>
<th> </th>
<th> </th>
</tr>
<tr>
<td id="a7" axis="date">2004</td>
<td headers="head1 head2">7</td>
<td headers="head1 head2">2</td>
<td> </td>
</tr>
<td id="a7" axis="date">2004</td>
<td headers="head1 head2">9</td>
<td headers="head1 head2">1</td>
<td> </td>
</tr>
<td id="a7" axis="date">2004</td>
<td headers="head1 head2">7</td>
<td headers="head1 head2">1</td>
<td> </td>
</tr>
</table>
<button onclick="alert(head1.axis);">Get the axis for heading 1</button>
</body>
</html>
Column span Example
<html>
<body>
<table border="3" cellspacing="5" cellpadding="5">
<colgroup>
<col id="col_1">
<col id="col_2">
<col id="col_3">
<tr>
<td>Column 1</td>
<td>Column 2</td>
<td>Column 3</td>
<td>Column 4</td>
<td>Column 5</td>
<td>Column 6</td>
</tr>
<tr>
<td>Cell 1</td>
<td>Cell 2</td>
<td>Cell 3</td>
<td>Cell 4</td>
<td>Cell 5</td>
<td>Cell 6</td>
</tr>
</table>
<input type="button" value="Span" onClick="function1();">
<script language="JavaScript">
document.getElementById("col_1").span = 2;
document.getElementById("col_2").span = 3;
document.getElementById("col_3").span = 1;
function function1() {
document.getElementById("col_2").align = "center"
document.getElementById("col_2").style.color = "green";
}
</script>