if (document.images) {

		var hom1 = new Image();
		var hom1on = new Image();
		var hom1off = new Image();

		hom1.src = "img/nav-home2.gif";
		hom1on.src = "img/nav-home1.gif";
		hom1off.src = "img/nav-home2.gif";
		
		var cont1 = new Image();
		var cont1on = new Image();
		var cont1off = new Image();

		cont1.src = "img/nav-cont2.gif";
		cont1on.src = "img/nav-cont1.gif";
		cont1off.src = "img/nav-cont2.gif";
		
		var about1 = new Image();
		var about1on = new Image();
		var about1off = new Image();

		about1.src = "img/nav-about2.gif";
		about1on.src = "img/nav-about1.gif";
		about1off.src = "img/nav-about2.gif";
				
		var water1 = new Image();
		var water1on = new Image();
		var water1off = new Image();

		water1.src = "img/nav-water2.gif";
		water1on.src = "img/nav-water1.gif";
		water1off.src = "img/nav-water2.gif";
				
		var struc1 = new Image();
		var struc1on = new Image();
		var struc1off = new Image();

		struc1.src = "img/nav-struc2.gif";
		struc1on.src = "img/nav-struc1.gif";
		struc1off.src = "img/nav-struc2.gif";
		
		var top = new Image();
		var topon = new Image();
		var topoff = new Image();

		top.src = "img/top1.gif";
		topon.src = "img/top2.gif";
		topoff.src = "img/top1.gif";
		
		var top1 = new Image();
		var top1on = new Image();
		var top1off = new Image();

		top1.src = "img/top1.gif";
		top1on.src = "img/top2.gif";
		top1off.src = "img/top1.gif";
		
		var top2 = new Image();
		var top2on = new Image();
		var top2off = new Image();

		top2.src = "img/top1.gif";
		top2on.src = "img/top2.gif";
		top2off.src = "img/top1.gif";
		
		var top3 = new Image();
		var top3on = new Image();
		var top3off = new Image();

		top3.src = "img/top1.gif";
		top3on.src = "img/top2.gif";
		top3off.src = "img/top1.gif";
		
		var top4 = new Image();
		var top4on = new Image();
		var top4off = new Image();

		top4.src = "img/top1.gif";
		top4on.src = "img/top2.gif";
		top4off.src = "img/top1.gif";
	}
function active(imgName) {
	if (document.images)
		document[imgName].src = eval(imgName + 'on.src');
}
function inactive(imgName) {
	if (document.images)
		document[imgName].src = eval(imgName + 'off.src');
}