var allNav = new Array('nav_home','nav_biography','nav_performances','nav_compositions','nav_media','nav_links','nav_recordings','nav_contact');


function preLoad() {
	for (i=0; i<allNav.length; i++) {
		var each = new Image();
		each.src="/images/" + allNav[i] + "_on.jpg";
	}
	
}


preLoad();

function on(whichImage) {
	document[whichImage].src="/images/"+whichImage+"_on.jpg";
}


function off(whichImage) {
	document[whichImage].src="/images/"+whichImage+".jpg";
}