<div id="abc"><a href='www.sina.com'>新浪</a></div>
<input type="button" onclick="changeValue()" />
<script type="text/javascript">
function changeValue() {
document.getElementById("abc").innerHTML = '<a href="www.china.com/index.html">中华网</a>';
}
</script>
<input type="button" onclick="changeValue()" />
<script type="text/javascript">
function changeValue() {
document.getElementById("abc").innerHTML = '<a href="www.china.com/index.html">中华网</a>';
}
</script>
abc.innerHTML = '...';
<head>
<script>
function myFun()
{
var div = document.getElementById("abc");
div.innerHTML = "<a href='www.china.com/index.html'>中华网</a>";
}
</script>
</head>
<body>
<div id="abc"><a href='www.sina.com'>新浪</a></div>
<input type="button" value="change" onclick="myFun();">
</body>
</html>
开来时晚了呵呵 不过还是贴上