<html>
<head>
<title>test</title>
<script language="javascript">
function addText()
{
var strText="<font color=red>改变后的表格内容</font>";
document.all("td1").insertAdjacentHTML("beforeEnd",strText);
//document.all("td1").innerHTML=strText; //
//document.all("td1").innerText=strText;
//document.all("td1").insertAdjacentText("beforeEnd",strText);
}
</script>
</head>
<body>
<input type="button" onclick=addText() value="改变表格内容" />
<input type="button" onclick="td1.innerHTML='';" value="清除">
<div id="id1">
</div>
<table id="ta1">
<tr><td id="td1">表格内容</td></tr>
</table>
</body>
</html>