[web] JavaScript/CSS : Doesn't work in firefox?

/**** Imported style sheet style.css ****/<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN"><HTML><HEAD><TITLE>404 Not Found</TITLE></HEAD><BODY><H1>Not Found</H1>The requested URL /Test/style.css was not found on this server.
Additionally, a 404 Not Founderror was encountered while trying to use an ErrorDocument to handle the request.
<ADDRESS>Apache/1.3.29 Server at www.orangytang.net Port 80</ADDRESS></BODY></HTML>/**** Inline STYLE-tag style sheet ****/			/* @import url(style.css); */						#origin			{				position: absolute;				left: 200px;				top: 200px;			}						#planet	{ position: absolute; }			#moon	{ position: absolute; }			#dust1	{ position: absolute; }			#dust2	{ position: absolute; }			#dust3	{ position: absolute; }						#comet	{ position: absolute; }						#dualO	{ position: absolute; }						#dual1	{ position: absolute; }			#dual2	{ position: absolute; }

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd"><html>	<head>		<title>Orbit test</title>				<script type="text/javascript">			var animateSpeed = 10; <!-- Delay in millis between frames -->						var x = 10;			var y = 10;						function startAnimation()			{				animate();			}						function animate()			{				o = document.getElementById('comet');								o.style.left = x++;				o.style.top = y++;								setTimeout('animate()', animateSpeed);				return;			}		</script>				<style type="text/css" media="screen">						#origin			{				position: absolute;				left: 200px;				top: 200px;			}						#comet			{				position: absolute;				left: 10px;				top: 10px;			}		</style>	</head>	<body onload="startAnimation()">			
			<img src="origin.gif" />		
			
			<img src="comet.gif" />		
			</body></html>