var browser = String(navigator.userAgent);
var className = "box";
if (browser.indexOf("irefox")!=-1) {
	document.write("<style type=\"text/css\"><!-- ."+className+"{ border: 1px solid #000; padding: 10px; background-color: #CCC; -moz-border-radius: 5px; } --></style>");
} else if (browser.indexOf("afari")!=-1 || browser.indexOf("hrome")!=-1) {
	document.write("<style type=\"text/css\"><!-- ."+className+"{ border: 1px solid #000; padding: 10px; background-color: #CCC; -webkit-border-radius: 5px; } --></style>");
}