<!DOCTYPE html>
<html>
<head>
<script>
function changeSrc()
{
document.getElementById("myframe").src="http://google.com";
}
</script>
</head>
<body>
<iframe id="myframe" src="/default.asp">
<p>您的浏览器不支持iframe属性.</p>
</iframe>
<br><br>
<input type="button" onclick="changeSrc()" value="Change Source">
</body>
</html>
<html>
<head>
<title>js控制iframe的src属性 - www.jb200.com</title>
</head>
<body>
<iframe width="400" height="300" src="" name="iframename" id="iframeid"></iframe>
<br>
<script language="
javascript">
function u1(u)
{
document.getElementById("iframeid").src=u;
}
</script>
<input type="button" value="http://www.baidu.com/" onclick="u1('http://www.baidu.com/')">
<input type="button" value="http://www.google.com/" onclick="u1('http://www.google.com/')">
<input type="button" value="http://www.jb200.com/" onclick="u1('http://www.jb200.com/')">
</body>
</html>
