var lessonHilite = new Image();
lessonHilite.src = "images/lessons_hilite.jpg";

var performanceHilite = new Image();
performanceHilite.src = "images/performance_hilite.jpg";

var downloadsHilite = new Image();
downloadsHilite.src = "images/downloads_hilite.jpg";

var bioHilite = new Image();
bioHilite.src = "images/bio_hilite.jpg";

var linksHilite = new Image();
linksHilite.src = "images/links_hilite.jpg";

var newletterHilite = new Image();
newletterHilite.src = "images/newsletter_hilite.jpg";

function swapImage( whichImage ){
	switch ( whichImage ){
		case "lessons":
			document.getElementById("lessons").src = lessonHilite.src;
			break;
		case "performance":
			document.getElementById("performance").src = performanceHilite.src;
			break;
		case "downloads":
			document.getElementById("downloads").src = downloadsHilite.src;
			break;
		case "bio":
			document.getElementById("bio").src = bioHilite.src;
			break;
		case "links":
			document.getElementById("links").src = linksHilite.src;
			break;
		case "newsletter":
			document.getElementById("newsletter").src = newletterHilite.src;
			break;
	}
}

function resetImage( whichImage ){
	switch ( whichImage ){
		case "lessons":
			document.getElementById("lessons").src = "images/lessons.jpg";
			break;
		case "performance":
			document.getElementById("performance").src = "images/performance.jpg";
			break;
		case "downloads":
			document.getElementById("downloads").src = "images/downloads.jpg";
			break;
		case "bio":
			document.getElementById("bio").src = "images/bio.jpg";
			break;
		case "links":
			document.getElementById("links").src = "images/links.jpg";
			break;
		case "newsletter":
			document.getElementById("newsletter").src = "images/newsletter.jpg";
			break;
	}
}