image = new Image();
image.src="Magnifying%20Glass.png";

function nextimage()
{
	var n=document.images["magnifying_glass"].src;

	if(n.match("Magnifying%20Glass.png"))
		document.images["magnifying_glass"].src="Magnifying_Glass.png";
	else 
		document.images["magnifying_glass"].src="Magnifying%20Glass.png";
}