Cool effect. How did they do it?

[socrates]

I was surfing and came across this page. When I hit my back button to go back to google it gave me an awesome effect. I looked at the code and didn't see anything that I recognized that would do this. Does anyone know how it's done?

http://www.sbl.net/Frames.html

[Zaire]

It's called page transitions, and it's an IE only effect

<meta http-equiv="Page-Enter" content="progid:DXImageTransform.Microsoft.Fade(Duration=1)">
<meta http-equiv="Page-Exit" content="progid:DXImageTransform.Microsoft.Fade(Duration=1)">

that's in his meta tag area

The effects really annoy me, but if you like it, use it