<!--

if ((navigator.userAgent.indexOf("Mac") != -1))
			document.write("<link rel='stylesheet' href='../css/mac.css'>")  
	if (navigator.userAgent.indexOf('Win') != -1){  
			if (navigator.appName.indexOf('Netscape') != -1) { 
				document.write("<link rel='stylesheet' href='../css/pc_nav.css'>") 
				}
				else {  
					document.write("<link rel='stylesheet' href='../css/pc_ie.css'>") 
				} 
			
	} 


//-->