[Mohon bantuannya kakak2] JQuerynya gag mau jalan di codeigniter

<link rel="stylesheet" type="text/css" media="screen" href="<?php echo base_url().'css/reset.css'; ?>" />
<link rel="stylesheet" type="text/css" media="screen" href="<?php echo base_url().'css/jquery.ketchup.css'; ?>" />
<link rel="stylesheet" type="text/css" media="screen" href="<?php echo base_url().'css/main.css'; ?>" />
 
<script language="JavaScript" src="<?php echo base_url().'/js/jquery-1.4.4.js'; ?>"></script>
<script language="JavaScript" src="<?php echo base_url().'/js/ketchup.js'; ?>"></script>
<script language="JavaScript" src="<?php echo base_url().'/js/ketchup.messages.js'; ?>"></script>
<script language="JavaScript" src="<?php echo base_url().'/js/ketchup.validations.basic.js'; ?>"></script>
 
<script type="text/javascript">
      $(document).ready(function() {
          $('#validasi').ketchup();
      });  
</script>
 
<form method="post" action="" id="validasi">
<table width="300" border="0">
  <tr>
    <td width="107">Tipe Penilaian</td>
    <td width="183"><label>
      <input type="text" name="tipepenilaian" class="validate(required, minlength(5))">
      </label></td>
  </tr>
  <tr>
    <td align="right"><label>
      <input type="submit" name="button" id="button" value="Submit" />
    </label></td>
    <td><label>
      <input type="submit" name="button2" id="button2" value="Submit" />
    </label></td>
  </tr>
</table>
</form>
<p> <?php echo $this->load->view('footer'); ?> </p>
</code
 
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