Untitled

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"
    "http://www.w3.org/TR/html4/loose.dtd">
<html>
  <head>
    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
    <script type="text/JavaScript" src="http://code.jquery.com/jquery-1.7.2.min.js"></script>
    <script language="JavaScript">
      $(document).ready(function(){
        var el = $("#pos");

        var radio = $("<input type=\"radio\" />");
        radio.prop("name", "op1");
        el.append(radio);
        el.append("first<br/>");

        radio = $("<input type=\"radio\" />");
        radio.prop("name", "op1");
        el.append(radio);
        el.append("second<br/>");
      });
    </script>
  </head>
  <body>
    <div id="pos"></div>
  </body>
</html>