Force IE8 Into IE7 Compatiblity Mode

Question

Is there a way to force IE8 into IE7 compatibility mode using .NET or Javascript?

Answer 1

A note to this:

IE 8.0s emulation only promises to display the page the same. There are subtle differences that might cause functionality to break. I recently had a problem with just that. Where IE 7.0 uses a javascript wrapper-function called "anonymous()" in IE 8.0 the wrapper was named differently.

So do not expect things like JavaScript to "just work", because you turn on emulation.