if (document.images) {
		var wsa = new Image();
		var wsaon = new Image();
		var wsaoff = new Image();

		wsa.src = "ind/nav-wsa3.gif";
		wsaon.src = "ind/nav-wsb.gif";
		wsaoff.src = "ind/nav-wsa3.gif";

		var tsa = new Image();
		var tsaon = new Image();
		var tsaoff = new Image();

		tsa.src = "ind/nav-tsa3.gif";
		tsaon.src = "ind/nav-tsb.gif";
		tsaoff.src = "ind/nav-tsa3.gif";

		var cna = new Image();
		var cnaon = new Image();
		var cnaoff = new Image();

		cna.src = "ind/nav-cna3.gif";
		cnaon.src = "ind/nav-cnb.gif";
		cnaoff.src = "ind/nav-cna3.gif";

		var hom = new Image();
		var homon = new Image();
		var homoff = new Image();

		hom.src = "ind/nav-hom3.gif";
		homon.src = "ind/nav-hom.gif";
		homoff.src = "ind/nav-hom3.gif";

		var csa = new Image();
		var csaon = new Image();
		var csaoff = new Image();

		csa.src = "ind/nav-csa3.gif";
		csaon.src = "ind/nav-csb.gif";
		csaoff.src = "ind/nav-csa3.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');
}