function DefineCss () {
	if ((window.navigator.appName.indexOf("Netscape") >= 0) && (window.navigator.userAgent.indexOf("Mozilla/5") >= 0)) {
		document.write('<link href="css/style_type1.css" type="text/css" rel="stylesheet">');
	} else {
		document.write('<link href="css/style_type.css" type="text/css" rel="stylesheet">');
	}
}