Get group of radio button selected value

Get group of radio button selected value

Dear All,
        I am having bunch of questions and each question is having options and need to get the value of selected radio button by using jquery.
    And the below written javascript is working fine in chrome ,But I see no luck in IE browser

Can any one help me how can I achieve it using jquery

  1.  <form id="q1">
  2.         <fieldset>
  3.             <legend>Course Content:</legend>
  4.             <label>How is training</label><br />
  5.             <label>&nbsp;<input type="radio" name="test1" value="Excellent">Excellent</label><br />
  6.             <label>&nbsp;<input type="radio" name="test1" value="Very good">Very good</label><br />
  7.             <label>&nbsp;<input type="radio" name="test1" value="Good">Good </label><br />
  8.             <label>&nbsp;<input type="radio" name="test1" value="Fair">Fair</label>
  9.             <textarea rows="2" cols="50" name="q1xtxtval"></textarea><br />
  10.             <label>&nbsp;<input type="radio" name="test1" value="Poor">Poor</label>
  11.             <textarea rows="2" cols="50" name="q1xtxtval"></textarea><br />

  12.     </form>

  13.     <script>
  14.         function check() {
  15.             var formq1 = document.getElementById("q1");
  16.             var q1result = formq1.elements["test1"].value;
  17.             alert(q1result);

  18.             var formq2 = document.getElementById("q2");
  19.             var q2result = formq2.elements["test2"].value;
  20.             alert(q2result);

  21.         }
  22.     </script>

SAM