browser_name = navigator.appName;
browser_version = parseFloat(navigator.appVersion); 

if (browser_name == "Netscape" && browser_version >= 4.0) { roll = 'true'; layers = 'ok' }
	else if (browser_name == "Microsoft Internet Explorer" && browser_version >= 3.0) { roll = 'true'; layers = 'bad' }
	else { roll = 'false'; layer = 'bad';
}

if ( roll ) { 
	IMG1 = new Image(); IMG1.src="/i/nv_home_2.gif";
	IMG2 = new Image(); IMG2.src="/i/nv_tour_2.gif"; 
	IMG3 = new Image(); IMG3.src="/i/nv_signup_2.gif";
	IMG4 = new Image(); IMG4.src="/i/nv_members_2.gif"; 
	IMG5 = new Image(); IMG5.src="/i/nv_support_2.gif";
	IMG6 = new Image(); IMG6.src="/i/nv_wm_2.gif";
}	

function msOvr ( imgName, action ) {
	if ( roll ) {
		if ( action == "on" ) {
			imgSrc="/i/nv_" + imgName + "_2.gif"			
			document.images[imgName].src = imgSrc
		} else {
			imgSrc="/i/nv_" + imgName + "_1.gif"						
			document.images[imgName].src = imgSrc
		}
	}	
}


function favorites (url) {
	if (confirm("Do you want to add this content to your favorites?")) {
		document.location = url;
	}
}