Why lightbox con jquery doesn't work on IE browser?

Q: Dear support,

I'm using your free version to quickly develop an internal website. It's working great in Chrome but not in IE browser. Do you have any IE fixes? We're using IE 8 and 9.

A: Please try to use the DOCTYPE declaration for universal compatibility:

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">