var gUseragent = navigator.userAgent;
var gMac = (gUseragent.indexOf('Mac') != -1) ? true : false;
var gWin = (gUseragent.indexOf('Win') != -1) ? true : false;
var gIE =  (gUseragent.indexOf('MSIE') != -1) ? true : false;
var gNetscape = (navigator.appName.indexOf('Netscape') != -1) ? true : false;
var gOpera = (gUseragent.indexOf('Opera') != -1) ? true : false;
var gSafari = (gUseragent.indexOf('Safari') != -1) ? true : false;
var gFirefox = (gUseragent.indexOf('Firefox') != -1) ? true : false;
var gGecko = (gUseragent.indexOf('Gecko/') != -1) ? true : false;
var gIE4 = null;
var gIE5 = null;
var gIE6 = null;
var gIE7 = null;
var gNN4 = null;
var gNN6 = null;
var gNN7 = null;
var gOpera6 = null;
var gOpera7 = null;
var gOpera8 = null;
var gOpera9 = null;
if (gOpera) {
	gOpera6 = (gUseragent.indexOf('Opera 6') != -1 || gUseragent.indexOf('Opera/6') != -1) ? true : false;
	gOpera7 = (gUseragent.indexOf('Opera 7') != -1 || gUseragent.indexOf('Opera/7') != -1) ? true : false;
	gOpera8 = (gUseragent.indexOf('Opera 8') != -1 || gUseragent.indexOf('Opera/8') != -1) ? true : false;
	gOpera9 = (gUseragent.indexOf('Opera 9') != -1 || gUseragent.indexOf('Opera/9') != -1) ? true : false;
} else if (gIE) {
	gIE4 = (gUseragent.indexOf('MSIE 4') != -1) ? true : false;
	gIE5 = (gUseragent.indexOf('MSIE 5') != -1) ? true : false;
	gIE6 = (gUseragent.indexOf('MSIE 6') != -1) ? true : false;
	gIE7 = (gUseragent.indexOf('MSIE 7') != -1) ? true : false;
}
if (gNetscape) {
	gNN4 = (gUseragent.indexOf('Mozilla/4') != -1) ? true : false;
	gNN6 = (gUseragent.indexOf('Netscape6') != -1) ? true : false;
	gNN7 = (gUseragent.indexOf('Netscape/7') != -1) ? true : false;
}

// CSS
if (gWin) {
	with(document) {
		open();
		writeln('<' + 'style type=text/css>');
		writeln('body { letter-spacing:0.08em; }');
		writeln('<' + '/style>');
		close();
	}
}