if (navigator.appVersion.charAt(0) >= 4) {
	if (navigator.userAgent.indexOf('Gecko') != -1) {
		gCssFile = "gecko.css";
	}else if (navigator.appName.indexOf('Netscape') != -1 && navigator.appVersion.indexOf('4.') != -1 ) {
		gCssFile = "nn4.css";
	}else{
		gCssFile = "basic.css";	
	}	
}

function media() { //v2.0
  window.open("http://www.suzune.net/contents/media.html","media","width=370,height=400,resizable=no,scrollbars=yes");
}