if (document.images != null)
{
	onnav = new Array (6); offnav = new Array (6);
	for (i=1;i<=5;i++) {onnav[i] = new Image; offnav[i] = new Image;}
	
	onnav[1].src="/template/images/nav/member_login_.gif";	
	onnav[2].src="/template/images/nav/publications_.gif";	
	onnav[3].src="/template/images/nav/photo_gallery_.gif";
	onnav[4].src="/template/images/nav/search_.gif";
	onnav[5].src="/template/images/nav/get_involved_.gif";
	
	offnav[1].src="/template/images/nav/member_login.gif";	
	offnav[2].src="/template/images/nav/publications.gif";	
	offnav[3].src="/template/images/nav/photo_gallery.gif";
	offnav[4].src="/template/images/nav/search.gif";	
	offnav[5].src="/template/images/nav/get_involved.gif";	
}
function nav_on(n) {if (document.images != null){document.images["nav"+(n+"")].src=onnav[n].src;}}
function nav_off(n) {if (document.images != null){document.images["nav"+(n+"")].src=offnav[n].src;}}