javascript: Is there a way to get bytes loaded?

[RetroGamer1991]

I'm grabbing images dynamically and was wanting to know if Javascript knows the bytesize of an image. I'm doing this because I need to know if a image is loaded and if its not then to display some "loading image..." text or some loading animation.

[Jon Hanlon]

There is a complete (http://msdn.microsoft.com/workshop/author/dhtml/reference/properties/complete.asp) property which images have had since Netscape 4.