Window lengthProperty
Window Object
Definition and Usage
The length property returns the number of frames in the current window (including IFRAMES).
Syntax
window.length
Browser Support
All major browsers support the length property
Example
Example
Find the number of frames on the page and change the src attribute of each frame element to "www.example.com":
<html>
<body>
<iframe src="http://www.microsoft.com"></iframe>
<iframe src="http://www.google.com"></iframe>
<iframe src="http://www.youtube.com"></iframe>
<script>
for (var i=0; i<frames.length; i++)
{
frames[i].location="http://www.example.com"
}
</script>
</body>
</html>
Window Object Other Extensions