if (document.images) {
	var barleyHi = new Image();
	barleyHi.src = "images/home/nav/but_barley_hi.jpg";
	var barleyLo = new Image();
	barleyLo.src = "images/home/nav/but_barley_lo.jpg";
	
	var dvdHi = new Image();
	dvdHi.src = "images/home/nav/but_dvd_hi.jpg";
	var dvdLo = new Image();
	dvdLo.src = "images/home/nav/but_dvd_lo.jpg";
}
	
function ImageRollOver(imgName) {
	if (document.images){
		document[imgName].src=eval(imgName+"Hi.src");
	}
}
	
function ImageRollOut(imgName) {
	if (document.images){
		document[imgName].src=eval(imgName+"Lo.src");
	}
}