function navOver() {
	myParentUL = this.parentNode.getElementsByTagName("ul");
	myFlyout = myParentUL[0];
	myFlyout.className = "showNav";
	myFlyout.onmouseover = function() { this.className = "showNav" };
	myFlyout.onmouseout = function() { this.className = "" };

	flyoutTop = this.offsetParent.offsetTop + this.offsetParent.offsetParent.offsetTop;
	flyoutHeight = myFlyout.offsetHeight;
	firstFlyoutHeight = flyoutHeight;

	if(flyoutHeight <= 1) {
		flyoutHeight = myFlyout.getElementsByTagName("li").length * this.offsetHeight;
	}
	if(self.innerHeight) {
		winHeight = self.innerHeight;
		winPos = window.pageYOffset;
	} else if(document.documentElement && document.documentElement.clientHeight) {
		winHeight = document.documentElement.clientHeight;
		winPos = document.documentElement.scrollTop;
	} else if(document.body) {
		winHeight = document.body.clientHeight;
		winPos = document.body.scrollTop;
	}

	flyoutPos = flyoutTop - winPos;
	safePos = winHeight - (flyoutPos + flyoutHeight);
	safePos = (safePos < 0 ? safePos:0)
	myFlyout.style.top = safePos + "px";
}

function navOut() {
	myParentUL = this.parentNode.getElementsByTagName("ul");
	myFlyout = myParentUL[0];
	myFlyout.className = "";
}
function initNav() {
	var myNav = document.getElementById("leftWrapper");
	var myNavLinks = myNav.getElementsByTagName("a");
	for(i = 0; i < myNavLinks.length; i++) {
		thisLink = myNavLinks[i];
		myParentUL = thisLink.parentNode.getElementsByTagName("ul")[0];
		if(myParentUL) {
			thisLink.onmouseover = navOver;
			thisLink.onmouseout = navOut;
		}
		if(location.href == thisLink) {
			if(thisLink.parentNode.parentNode.parentNode.getElementsByTagName("ul").length == 1)
				thisLink.parentNode.parentNode.parentNode.getElementsByTagName("a")[0].className = "currentNav";
			thisLink.className = "currentNav";
		}
	}
}