HTML DOM id Attribute
Definition and Usage
The id attribute can be set or returned for the iframe.
Syntax
iframeObject.id=id
Example
This example demonstrates two methods to return the id of an iframe:
<html>
<body>
<iframe src="frame_a.htm" id="frame1"></iframe>
<br /><br />
<script type="text/javascript">
document.write("The iframe's id: ");
document.write(document.getElementsByTagName("iframe")[0].id);
document.write("<br /><br />");
document.write("An alternate way: ");
document.write("<br />");
document.write("The iframe's id: ");
document.write(document.getElementById("frame1").id);
</script>
</body>
</html>
