CODE EXAMPLE FOR HTML

iam making a disable button , when I click on it disable it and the write please wait on this button in jQuery

<script type="text/javascript">
  $(document).ready(function(){
    $("input[type='submit']").attr("disabled", false);
    $("form").submit(function(){
      $("input[type='submit']").attr("disabled", true).val("Please wait...");
      return true;
    })
  })
</script>