var Win = navigator.appVersion.indexOf('Win',0) != -1;
		var Mac = navigator.appVersion.indexOf('Mac',0) != -1;

		if(Mac){
		document.writeln('<LINK REL="stylesheet" TYPE="text/css" HREF="../css/mac.css" TITLE="style select">');
		}
		if(Win){
		document.writeln('<LINK REL="stylesheet" TYPE="text/css" HREF="../css/win.css" TITLE="style select">');
		}