JqueryANDAjax PHP (Opgelost)

<script type="text/javascript">
         $(document).ready(function(){
             $("#but").click(function(){
                 var querystring = $(this).serialize();
                 $('#txtHint').html(querystring);
                 
				 $.ajax({
    type:"POST",
    url: "berekening.php",
    cache:false,
    data: querystring,
    success: function(data){
          $("#txtHint").html(data);
        }
    });
   return(false);
   
                 });
        });
    </script>

<script type="text/javascript">
         $(document).ready(function(){
             $("#but").click(function(){
                 var querystring = $(this).serialize();
                 $('#txtHint').html(querystring);
 
				 $.ajax({
    type:"POST",
    url: "berekening.php",
    cache:false,
    data: querystring,
    success: function(data){
          $("#txtHint").html(data);
        }
    });
   return(false);
 
                 });
        });
    </script>

echo "<form method='post' enctype='multipart/form-data' id='form' name='form'>";
		if($_POST['type_materiaal'])
{
 	echo "<div class='txtHint'><span>Uw prijs<div id='txtHint'></div></span></div>
<input type='button' value='Bereken uw prijs' id='but' /> <input type='button' onClick='location.href=\"bestand.php?get=".$order_id."\"' value='Meer bestanden'> <input type='submit' onClick='submitFunction(2)' value='Bestellen'>";
}</form>";

?>

echo "<form method='post' enctype='multipart/form-data' id='form' name='form'>";
		if($_POST['type_materiaal'])
{
 	echo "<div class='txtHint'><span>Uw prijs<div id='txtHint'></div></span></div>
<input type='button' value='Bereken uw prijs' id='but' /> <input type='button' onClick='location.href=\"bestand.php?get=".$order_id."\"' value='Meer bestanden'> <input type='submit' onClick='submitFunction(2)' value='Bestellen'>";
}</form>";
 
?>