// JavaScript Document

// Preload Images
for (var id in libHeadNav) {
	var img0 = new Image();
	img0.src = libHeadNav[id][0];
	var img1 = new Image();
	img1.src = libHeadNav[id][1];	
}

function hnOver(sender) {
	if (hasClassName(sender, "active")) return;
	if (libHeadNav[sender.id][1] != '')
	sender.style.backgroundImage = "url(" + libHeadNav[sender.id][1] + ")";
	if (!sender.hasChildNodes()) return;
	var a = sender.firstChild;
	if (a.tagName != "A") return;
	a.style.color = libHeadNav[sender.id][3];
}

function hnOut(sender) {
	if (hasClassName(sender, "active")) return;	
	if (libHeadNav[sender.id][0] != '')
	sender.style.backgroundImage = "url(" + libHeadNav[sender.id][0] + ")";
	if (!sender.hasChildNodes()) return;
	var a = sender.firstChild;
	if (a.tagName != "A") return;
	a.style.color = libHeadNav[sender.id][2];
}