function setupNav()
{	
	setHoverClasses('a.nav', 'nav', 'navon');
	setHoverClasses('a.subs', 'subs', 'subson');
	setHoverClasses('a.subs2', 'subs2', 'subs2on');    
	setHoverClasses('a.pnt', 'pnt', 'pnton');	

	work = new HoverImg('artwork', '../images/nav/artworkon.gif');
	artnav = new HoverImg('artist', '../images/nav/artiston.gif');
	cnt = new HoverImg('contact', '../images/nav/contacton.gif');		
}