var bName = navigator.appName.charAt(0);

if(navigator.appVersion.indexOf("Mac") > -1){
	if( bName == "M"){
		// Mac IE
		document.writeln('<link href="http://www.cogenmedia.com/common/css/txt_MIE.css" rel="stylesheet" type="text/css">');

	}else{
		//Mac else
		document.writeln('<link href="http://www.cogenmedia.com/common/css/txt_M.css" rel="stylesheet" type="text/css">');
	}
}else{
	if( bName == "M"){
		// Windows IE
		document.writeln('<link href="http://www.cogenmedia.com/common/css/txt_WIE.css" rel="stylesheet" type="text/css">');
	}else{
		// Windows else
		document.writeln('<link href="http://www.cogenmedia.com/common/css/txt_W.css" rel="stylesheet" type="text/css">');
	}
}