if (navigator.appName == 'Microsoft Internet Explorer')      
 	document.write('<link rel=stylesheet href=css/default.css>')     
	//location.href = 'index.html'; 
else if (navigator.appName == 'Netscape')      
	//location.href = 'index.html';     
	document.write('<link rel=stylesheet href=css/netscape.css>') 
else     
	document.write('<link rel=stylesheet href=css/default.css>');