var browser=navigator.appName;

var b_version=navigator.appVersion;
var version=parseFloat(b_version);
var cssStr = "";
cssStr = "<style>";
cssStr = cssStr + "@import url(/inc/css/default.css);";
if (browser != "Microsoft Internet Explorer" && b_version.indexOf("Safari")== -1) 
	cssStr = cssStr + "@import url(/inc/css/default_moz_adjust.css);";
if (navigator.appVersion.indexOf("Mac")!=-1) {
	cssStr = cssStr + "@import url(/inc/css/default_mac_adjust.css);";
}

cssStr = cssStr + "</style>";
document.writeln(cssStr);