if (document.images) 
	{
	image1on = new Image();
	image1off = new Image();
	image1on.src = "img/mn01_b.gif";
	image1off.src = "img/mn01_a.gif";
	
	image2on = new Image();
	image2off = new Image();
	image2on.src = "img/mn02_b.gif";
	image2off.src = "img/mn02_a.gif";
	
	image3on = new Image();
	image3off = new Image();
	image3on.src = "img/mn03_b.gif";
	image3off.src = "img/mn03_a.gif";

	image4on = new Image();
	image4off = new Image();
	image4on.src = "img/mn04_b.gif";
	image4off.src = "img/mn04_a.gif";

	image5on = new Image();
	image5off = new Image();
	image5on.src = "img/mn05_b.gif";
	image5off.src = "img/mn05_a.gif";

	image6on = new Image();
	image6off = new Image();
	image6on.src = "img/mn06_b.gif";
	image6off.src = "img/mn06_a.gif";

	image7on = new Image();
	image7off = new Image();
	image7on.src = "img/mn07_b.gif";
	image7off.src = "img/mn07_a.gif";

	} 

function changeImages() {
	if (document.images) {
		for (var i=0; i<changeImages.arguments.length; i+=2) {
			document[changeImages.arguments[i]].src = eval(changeImages.arguments[i+1] + ".src");
		}}}