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Selectors/selected

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:selected

Matches all elements that are selected.
This does not include checkboxes or radio inputs; use :checked for that.
Examples:

Attaches a change event to the select that gets the text for each selected option and writes them in the div. It then triggers the event for the initial text draw.

    $("select").change(function () {
          var str = "";
          $("select option:selected").each(function () {
                str += $(this).text() + " ";
              });
          $("div").text(str);
        })
        .trigger('change');

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" 
                    "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
  <script src="http://code.jquery.com/jquery-latest.js"></script>
  
  <script>
  $(document).ready(function(){
    
    $("select").change(function () {
          var str = "";
          $("select option:selected").each(function () {
                str += $(this).text() + " ";
              });
          $("div").text(str);
        })
        .trigger('change');

  });
  </script>
  <style>
  div { color:red; }
  </style>
</head>
<body>
  <select name="garden" multiple="multiple">
    <option>Flowers</option>
    <option selected="selected">Shrubs</option>
    <option>Trees</option>
    <option selected="selected">Bushes</option>
    <option>Grass</option>
    <option>Dirt</option>
  </select>
  <div></div>
</body>
</html>

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