​x
 
<html>
<head>
<script type="text/javascript">
function alertAxis()
  {
  alert(document.getElementById('td3').axis);
  }
</script>
</head>
<body>
​
<table border="1">
<tr>
<th>Firstname</th>
<th>Lastname</th>
<th>City</th>
</tr>
<tr>
<td id="td1">Harry</td>
<td id="td2">Potter</td>
<td id="td3" axis="location">NY</td>
</tr>
<tr>
<td id="td4">Peter</td>
<td id="td5">Griffin</td>
<td id="td6" axis="location">Las Vegas</td>
</tr>
</table>
<br />
<input type="button" onclick="alertAxis()" value="Alert axis" />
​
</body>
</html>
​