//dynamic navigation
initNav = function() {
	if (document.all && document.getElementById) {
		var navRoot = document.getElementById("main-navigation");
		var lis = navRoot.getElementsByTagName("li");
		for (var i=0; i<lis.length; i++){
			lis[i].onmouseover = function(){
				this.className += " hover";
			}
			lis[i].onmouseout = function(){
				this.className = this.className.replace(" hover", "");
			}
		}
	}
}
if (document.all && window.attachEvent)
	attachEvent("onload", initNav);