Submit in jquery

<html>
<head>
  <style>

  p { margin:0; color:blue; }
  div,p { margin-left:10px; }
  span { color:red; }
  </style>
  <script src="http://code.jquery.com/jquery-latest.js"></script>
</head>
<body>
  <p>Type 'correct' to validate.</p>
  <form action="javascript:alert('success!');">
    <div>
      <input type="text" />

      <input type="submit" />
    </div>
  </form>
  <span></span>
<script>

    $("form").submit(function() {
      if ($("input:first").val() == "correct") {//first input tag,
  //if ($("input:second").val() == "correct") {second input tag,
        $("span").text("Validated...").show();//for all span
        return true;
      }
      $("span").text("Not valid!").show().fadeOut(1000);
      return false;
    });
</script>

</body>
</html>



<html>
<head>
  <style>

  p { margin:0; color:blue; }
  div,p { margin-left:10px; }
  span { color:red; }
  </style>
  <script src="http://code.jquery.com/jquery-latest.js"></script>
</head>
<body>
  <p>Type 'correct' to validate.</p>
 <form id="target" action="destination.html">
  <input type="text" value="Hello there" />
  <input type="submit" value="Go" />
</form>
<div id="other">
  Trigger the handler
</div>
  <span></span>
<script>

   $('#target').submit(function() {
  alert('Handler for .submit() called.');
  return false;
});
$('#other').click(function() {
  $('#target').submit();
});
</script>

</body>
</html>