Event.observe(window, "load", function() {
	//check for IE 6
	if (!window.XMLHttpRequest) {
		$$("#nav li").each(function(evt) {
			Event.observe(evt, "mouseover", function() {
				evt.addClassName("hover");
			});
			Event.observe(evt, "mouseout", function() {
				evt.removeClassName("hover");
			});
		});
	}
});