Radio button selection problem in php 2011-12
.Hi guys, I have a problem on getting the selected radio button and save it in the database.

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Code:
  <div id="container">
    <div id="question1" style="display: inline;">
    <p>Question 1</p>
    <ul>
    <li><input type="radio" name="q1" value="1" id="ans1" />Answer 1</li>
    <li><input type="radio" name="q2" value="2" id="ans1"/>Answer 2</li>
    <li><input type="radio" name="q3" value="3" id="ans1"/>Answer 3</li>
    </ul>
    </div>
    <div id="question2" style="display: none;">
    <p>Question 2</p>
    <ul>
    <li><input type="radio" name="q1" value="1" id="ans2" />Answer 1</li>
    <li><input type="radio" name="q2" value="2" id="ans2"/>Answer 2</li>
    <li><input type="radio" name="q3" value="3" id="ans2"/>Answer 3</li>
    </ul>
    </div>
    <div id="question3" style="display: none;">
    <p>Question 3</p>
    <ul>
    <li><input type="radio" name="q1" value="1" id="ans3" />Answer 1</li>
    <li><input type="radio" name="q2" value="2" id="ans3"/>Answer 2</li>
    <li><input type="radio" name="q3" value="3" id="ans3"/>Answer 3</li>
    </ul>
    </div>
    </div><!-- END OF CONTAIN
ER -->