var msie = navigator.appVersion.indexOf('MSIE 6');
var x11 = navigator.appVersion.indexOf('X11');

if((navigator.appName == "Microsoft Internet Explorer") && (parseInt(navigator.appVersion) >= 4 )){
	if((navigator.appVersion.indexOf("Macintosh"))!= -1){
		document.write('<link rel="stylesheet" href="includes/style-ns.css" type="text/css"/>')
	} else if (msie != -1){
		document.write('<link rel="stylesheet" href="includes/style.css" type="text/css"/>')
	} else{
		document.write('<link rel="stylesheet" href="includes/style.css" type="text/css"/>')
	}
} else if ((navigator.appName == "Netscape") && (parseInt(navigator.appVersion) >= 4)) {
	if((navigator.appVersion.indexOf("Macintosh"))!= -1){
		document.write('<link rel="stylesheet" href="includes/style-ns.css" type="text/css"/>')
	} else if ((navigator.appName == "Netscape") && (parseInt(navigator.appVersion) >= 5)){
		document.write('<link rel="stylesheet" href="includes/style-ns.css" type="text/css"/>')
	} else if (x11 != -1){
		document.write('<link rel="stylesheet" href="includes/style-ns.css" type="text/css"/>')
	} else{
		document.write('<link rel="stylesheet" href="includes/style-ns.css" type="text/css"/>')
	}
} else{
	document.write('<link rel="stylesheet" href="includes/style-ns.css" type="text/css"/>')
}