Find the Quantity, Unit Price and Total Cost Shopping Cart Help

Hello I am having some difficulty with my shopping cart script. So far I have it so you can update how many quantities of the item you want and it also updates the price as well. I want it so that once you click a button that says "Add To Cart" it sends you to a page that displays your order and tells you the Quantity, Unit Price and Total Cost of it.

Below is the code I have so far.

Javascript:

<script type="text/javascript">

$(document).ready(function() {

                 

$("#Quantity").keypress(function(event) {

return /\d/.test(String.fromCharCode(event.keyCode));

                                                  });

                 

$("#Quantity").change(function(event) {

$(this).val(Math.abs($(this).val()));

                   

UpdatePrice();

});

                 

$("#CartForm").submit(function(event) {

                     

if(!isNormalInteger($("#Quantity").val()))

{

event.preventDefault();

                     

alert("Sorry, you must select at least one of these DVD's!");

         

return false

}

});

                 

UpdatePrice();

});



function UpdatePrice()

{

var AdjustedPrice = parseFloat($("#BaseUnitPrice").val())*parseInt($("#Quantity").val());

                             

$("#AdjustedPrice").html(AdjustedPrice.toFixed(2) + $("#Currency").val());

                          }



function ChangeQuantity(Value)

{

var NewQuantity = parseInt($("#Quantity").val()) + parseInt(Value);



if(NewQuantity < 1)

NewQuantity = 1;



$("#Quantity").val(NewQuantity);



UpdatePrice();

}



function isNormalInteger(str) {

return /^\+?(0|[1-9]\d*)$/.test(str);

}

</script>

Code (markup):

PHP:

echo'<div class="right"><img alt="Picture" src="dvdcovers/wolverine.jpg" height="100" width="100" /></div>';

echo'<font color="white">';

echo'<br />';

echo'<b>Title:</b> The Wolverine';

echo'<br />';

echo'<b>Quantity:</b> $Quantity;';

echo'<br />';

echo'<b>Unit Price:</b>';

echo'<br />';

echo'<b>Total Cost:</b>';

echo'</font>';

   

echo'<br /><br />';

echo'<h3 class="widget-title">Purchasing And Payment</h3>';

echo'<form action="cart.php" method="post" id="CartForm">';

   

echo'<b>Unit Price: </b><div id="AdjustedPrice"></div>';

echo'<br />';

echo'<input type="hidden" id="Currency" value=" AUD" />';



echo'<input type="hidden" id="BaseUnitPrice" name="UnitPrice" value="29.99" />';



echo'<input type="hidden" name="ProductCode" value="000" />';

echo'<br />';

echo'<input type="text" id="Quantity" name="Quantity" value="1" />';

echo'<input type="button" value="-" onclick="ChangeQuantity(-1);" />';

echo'<input type="button" value="+" onclick="ChangeQuantity(1);" />';

echo'<br />';

echo'<input type="Submit" value="Buy" />';

echo'</form>';

Code (markup):

Any help would be much appreciated. Thankyou.