My eyes must be getting bad because I can not for the life of me see why the submit code on this thing is happening twice

Code JavaScript:
<form method='post' action='index.php' id='e_form'>
  <p><label for='e_type_g'><input type='radio' name='e_type' id='e_type_g' value='g' /> Guitar Contest</label></p>
  <p><label for='e_type_r'><input type='radio' name='e_type' id='e_type_r' value='r' /> Rhythm Contest</label></p>
  <fieldset id='e_amount' style='display: none; width: 150px; margin-left: 10px;'>
    <legend style='padding: 0 5px; font-weight: bold;'>Entry Type</legend>
      <p><label for='e_1'><input type='radio' name='num_entries' id='e_1' value='1' /> Solo ($25 fee)</label></p>
      <p><label for='e_2'><input type='radio' name='num_entries' id='e_2' value='2' /> Duo ($50 fee)</label></p>
      <p><label for='e_3'><input type='radio' name='num_entries' id='e_3' value='3' /> Trio ($75 fee)</label></p>
  </fieldset>
  <p><input type='submit' value='continue' class='button' /></p>
</form>
<script type='text/javascript'>
 
$(document).ready(function()	{
 
  $('#e_type_r').click(function()	{
    $('#e_amount').show();
  });
 
  $('#e_type_g').click(function()	 {
    $('#e_amount').hide();
    $('input[name=num_entries]').attr('checked', false);
  });
 
  $('#e_form').submit(function(event)	 {
 
    event.preventDefault();
    alert($('#e_type_g').attr('checked'));
 
  });
 
});
 
</script>

The alert alert($('#e_type_g').attr('checked')); shows twice

Not seeing any errors in Firebug either