function Is() {
	var agent = navigator.userAgent.toLowerCase();
	this.major = parseInt(navigator.appVersion);
	this.minor = parseFloat(navigator.appVersion);
	this.ns = ((agent.indexOf('mozilla')!=-1) && ((agent.indexOf('spoofer')==-1) && (agent.indexOf('compatible') == -1)));
	this.ns45 = (this.ns && (this.minor == 4.5));
	this.ns47 = (this.ns && (this.minor >= 4.7 && (this.minor <= 4.9)));
	this.ie = (agent.indexOf("msie") != -1);
	this.op3 = (agent.indexOf("opera") != -1);
	this.mac = (agent.indexOf("mac") != -1);
	this.safari = (agent.indexOf("safari") != -1);
	return this;
}

var is = new Is();

if(document.location.href.indexOf("index.html") != -1){ 
	var csspath = "./";
} else if(document.location.href.indexOf("information.html") != -1 || (document.location.href.indexOf("foro.html") != -1 ) || (document.location.href.indexOf("impressum.html") != -1 ) || (document.location.href.indexOf("rezepte.html") != -1 ) || (document.location.href.indexOf("tcenergia.html") != -1 ) || (document.location.href.indexOf("publicaciones.html") != -1 ) || (document.location.href.indexOf("geschuetzt") != -1 ) || (document.location.href.indexOf("kontakt.php") != -1 ) || (document.location.href.indexOf("derechos.html") != -1 ) || (document.location.href.indexOf("condiciones.html") != -1 ) || (document.location.href.indexOf("condiciones_window.html") != -1 ) || (document.location.href.indexOf("kontakt_ns.php") != -1 ) || (document.location.href.indexOf("shop") != -1 ) || (document.location.href.indexOf("catalogo.html") != -1 ) || (document.location.href.indexOf("ext_links.html") != -1 ) || (document.location.href.indexOf("video.html") != -1 )){ 
 	csspath = "../";
}else {
	csspath = "../../";
}

// setting variable "typo" for css
function setCSS() {
	
	if(is.ns45 || (is.ns47)) {
		if(is.mac) {
			var typo = ('<LINK REL=stylesheet TYPE="text/css" HREF="'+ csspath +'css/noscript.css" TITLE="style">');
		}else{
			var typo = ('<LINK REL=stylesheet TYPE="text/css" HREF="'+ csspath +'css/noscript.css" TITLE="style">');
		}
	} else {
		if(is.mac){
			if(is.ie){
				var typo = ('<LINK REL=stylesheet TYPE="text/css" HREF="'+ csspath +'css/ie.css" TITLE="style">');
			} else if(is.safari) {
				var typo = ('<LINK REL=stylesheet TYPE="text/css" HREF="'+ csspath +'css/safari.css" TITLE="style">');
			}	else {
				var typo = ('<LINK REL=stylesheet TYPE="text/css" HREF="'+ csspath +'css/noscript.css" TITLE="style">');
			}
		
		} else {
			if(is.op3){
				var typo = ('<LINK REL=stylesheet TYPE="text/css" HREF="'+ csspath +'css/opera.css" TITLE="style">');
				} else {
				var typo = ('<LINK REL=stylesheet TYPE="text/css" HREF="'+ csspath +'css/ie.css" TITLE="style">');
			}
		}
	}
	return typo;
}