var vNum = navigator.appVersion.charAt(0);
var bName = navigator.appName.charAt(0);
var mac = (navigator.appVersion.indexOf("Mac") > -1) ? true : false;
var safari = (navigator.appVersion.indexOf("Safari") > -1) ? true : false;
var cssFile = "";

function checkBrowser(){
	if(mac){
		if(bName == "M") cssFile = "macIE5";
		else if(safari) cssFile = "macIE5";
		else if(vNum < 5) cssFile = "macNN4";
		else cssFile = "macNN6";
	}
	else{
		if(bName == "M") cssFile = "winIE6";
		else if(vNum <5) cssFile = "winNN4";
		else cssFile = "winNN6";
	}
	document.writeln("<link rel=\"stylesheet\" href=\"http://www.nmca.gr.jp/common/css/" + cssFile + ".css\" type=\"text/css\">");
}
checkBrowser();