<table border=1>
<tr><td id="mytd">Let go!</td></tr>
</table>
<script language="JavaScript">
<!--
mytd.style.color="red";
//-->
</script>
<tr><td id="mytd">Let go!</td></tr>
</table>
<script language="JavaScript">
<!--
mytd.style.color="red";
//-->
</script>
<head>
<style>
TD.A{color:red}
</style>
</head>
<body><table border="1" width="37%">
<tr>
<td width="50%">aa</td>
<td width="50%">tt</td>
</tr>
<tr>
<td width="50%">bb</td>
<td width="50%" id='td1'>test2</td>
</tr>
</table>
<input type="button" value="go 1"
onclick="javascript:td1.style.color='red'">
<input type="button" value="go 2"
onclick="javascript:td1.className='A'">
<input type="button" value="cancel 2"
onclick="javascript:td1.className=''">
</body>
</html>