<?
//start the session
session_start();

//if the user has chosen to keep on shopping
//save the shopping cart
//then redirect to another page of the site
if($_POST['continue'] == '<< Continue Shopping'){
	$_SESSION['curr'] = $_POST['currency'];
	$_SESSION['cds'] = $_POST['cd_quantity'];
	$_SESSION['books'] = $_POST['book_quantity'];
	$_SESSION['packs'] = $_POST['pack_quantity'];
	header("Location: products.html");
} else if($_POST['continue'] == 'Checkout >>'){

	$_SESSION['curr'] = $_POST['currency'];
	$_SESSION['cds'] = $_POST['cd_quantity'];
	$_SESSION['books'] = $_POST['book_quantity'];
	$_SESSION['packs'] = $_POST['pack_quantity'];
	header("Location: buy2.php");
}

require_once("prices.php");




/******************************* SHOPPING SYSTEM *****************************
*
*	When a user adds an item to the cart, the item quantity for that type
*	of product is incremented by one.
*	When a user clicks on the trash icon next to a product, the quantity for
*	that type of product is set to 0, and that product is made invisible. A
*	link is added to allow the user to add that product to the cart again.
*
*round all javascript currencies to 2 decimal places
*
*
*
******************************* SHOPPING SYSTEM *****************************/










$currency = $_POST['currency'];

//if the currency has not been sent from the shopping cart
if (empty($currency)) {
	$currency = $_SESSION['curr'];
	//if the currency has not been set before
	if (empty($currency)) {
		//set the currency to USD
		$_SESSION['curr'] = 'USD';
	} 
//if the currency HAS been sent from the shopping cart
} else {
	//set the currency of the shopping cart to the currency sent by the shopping cart form
	$_SESSION['curr'] = strtoupper($currency);
}


//initiate price variables
$cd = 0;
$cdship = 0;
$book = 0;
$bookship = 0;
$pack = 0;
$packship = 0;
$cursymbol = '$';

//if the currency is USD
if($_SESSION['curr'] == 'USD'){
	//set the prices accordingly
	$cd = $cdusd;
	$cdship = $cdusdship;
	$book = $bookusd;
	$bookship = $bookusdship;
	$book5 = $bookusd5;
	$bookship5 = $bookusdship5;
	$book10 = $bookusd10;
	$bookship10 = $bookusdship10;
	$pack = $packusd;
	$packship = $packusdship;
	$cursymbol = '$';
} else if($_SESSION['curr'] == 'GBP'){
	//set the prices accordingly
	$cd = $cdgbp;
	$cdship = $cdgbpship;
	$book = $bookgbp;
	$bookship = $bookgbpship;
	$book5 = $bookgbp5;
	$bookship5 = $bookgbpship5;
	$book10 = $bookgbp10;
	$bookship10 = $bookgbpship10;
	$pack = $packgbp;
	$packship = $packgbpship;
	$cursymbol = 'Ł';
} else if($_SESSION['curr'] == 'EUR'){
	//set the prices accordingly
	$cd = $cdeur;
	$cdship = $cdeurship;
	$book = $bookeur;
	$bookship = $bookeurship;
	$book5 = $bookeur5;
	$bookship5 = $bookeurship5;
	$book10 = $bookeur10;
	$bookship10 = $bookeurship10;
	$pack = $packeur;
	$packship = $packeurship;
	$cursymbol = '€';
}

//if no cds have previously been added to the shopping cart
if (empty($_SESSION['cds'])) {
	//if we are adding a cd to the cart
	if($_GET['addprod'] == 'cd') {
		//add a cd to the shopping cart
		$_SESSION['cds'] = 1;
	} else {
		$_SESSION['cds'] = 0;
	}
//if cds have previously been added to the shopping cart
} else {
	//if we are adding a cd to the cart
	if($_GET['addprod'] == 'cd') {
		//add another cd to the previous number of cds
		$_SESSION['cds']++;
	}
}


//if no cds have previously been added to the shopping cart
if (empty($_SESSION['books'])) {
	//if we are adding a cd to the cart
	if($_GET['addprod'] == 'book') {
		//add a cd to the shopping cart
		$_SESSION['books'] = 1;
	} else {
		$_SESSION['books'] = 0;
	}
//if cds have previously been added to the shopping cart
} else {
	//if we are adding a cd to the cart
	if($_GET['addprod'] == 'book') {
		//add another cd to the previous number of cds
		$_SESSION['books']++;
	}
}


//if no cds have previously been added to the shopping cart
if (empty($_SESSION['packs'])) {
	//if we are adding a cd to the cart
	if($_GET['addprod'] == 'pack') {
		//add a cd to the shopping cart
		$_SESSION['packs'] = 1;
	} else {
		$_SESSION['packs'] = 0;
	}
//if cds have previously been added to the shopping cart
} else {
	//if we are adding a cd to the cart
	if($_GET['addprod'] == 'pack') {
		//add another cd to the previous number of cds
		$_SESSION['packs']++;
	}
}




?> 
<html>
<head>
<title>The Enchanted Forest - Shopping Cart</title>
<meta http-equiv="Content-Type" content="text/html;">
<script language="JavaScript">
<!--


function initPage(){
	
	<?
	if(empty($_SESSION['cds'])){
		echo 'hidecds();';
	}
	if(empty($_SESSION['books'])){
		echo 'hidebooks();';
	}
	if(empty($_SESSION['packs'])){
		echo 'hidepacks();';
	}
	?>
	getSubTotals(); 

}


function setCurrency(curr){
	if(curr == 0){
		document.setusd.submit();
	} else if(curr == 1){
		document.seteur.submit();
	} else if(curr == 2){
		document.setgbp.submit();
	}
}

function getSubTotals(){
	var cdprice = <?= $cd?>;
	var bookprice = <?= $book?>;
	var bookprice5 = <?= $book5?>;
	var bookprice10 = <?= $book10?>;
	var packprice = <?= $pack?>;

	//set the subtotal for cds
	tempsub = document.cart.cd_quantity.value * cdprice;
	document.cart.cd_subtotal.value = tempsub.toFixed(2);

	//set the subtotal for books
	if(parseInt(document.cart.book_quantity.value) < 5){
		tempsub = document.cart.book_quantity.value * bookprice;
		document.cart.book_subtotal.value = tempsub.toFixed(2);
	} else if(parseInt(document.cart.cd_quantity.value) >= 5 && parseInt(document.cart.cd_quantity.value) < 10){
		tempsub = (parseInt(document.cart.book_quantity.value)/5) * bookprice5;
		document.cart.book_subtotal.value = tempsub.toFixed(2);

	} else if(parseInt(document.cart.cd_quantity.value) >= 10){
		tempsub = (parseInt(document.cart.book_quantity.value)/10) * bookprice10;	
		document.cart.book_subtotal.value = tempsub.toFixed(2);
	}

	//set the subtotal for packs
	tempsub = document.cart.pack_quantity.value * packprice;
	document.cart.pack_subtotal.value = tempsub.toFixed(2);

	getShipping();
}

function getShipping(){
	var cdship = document.cart.cd_quantity.value * <?= $cdship?>;

	var bookship = 0;	
	if(parseInt(document.cart.book_quantity.value) < 5){
		bookship = document.cart.book_quantity.value * <?= $bookship?>;	
	} else if(parseInt(document.cart.cd_quantity.value) >= 5 && parseInt(document.cart.cd_quantity.value) < 10){
		bookship = (parseInt(document.cart.book_quantity.value)/5) * <?= $bookship5?>;	
	} else if(parseInt(document.cart.cd_quantity.value) >= 10){
		bookship = (parseInt(document.cart.book_quantity.value)/10) * <?= $bookship10?>;	
	}

	var packship = document.cart.pack_quantity.value * <?= $packship?>;
	tempsub = cdship + bookship + packship;
	document.cart.ship_subtotal.value = tempsub.toFixed(2);
	getTotal();
}

function getTotal(){
	tempsub = parseFloat(document.cart.ship_subtotal.value) + parseFloat(document.cart.cd_subtotal.value) + parseFloat(document.cart.book_subtotal.value) + parseFloat(document.cart.pack_subtotal.value);
	document.cart.carttotal.value = tempsub.toFixed(2);
}



function hidecds(){
	//set the quantity of cds to 0
	document.cart.cd_quantity.value = 0;
	//set the cd subtotal to 0
	document.cart.cd_subtotal.value = 0;

	//hide cd row in shopping cart
	row = document.getElementById('cdrow');
	row.style.display = 'none';

	//show the 'add cd' link
	row = document.getElementById('cdlink');
	row.style.display = 'block';

	getSubTotals();
}

function showcds(){
	//set the quantity of cds to 1
	document.cart.cd_quantity.value = 1;
	//calculate the cd subtotal
	getSubTotals();

	//show the cd row in shopping cart
	row = document.getElementById('cdrow');
	row.style.display = 'block';	

	//hide the 'add cd' link
	row = document.getElementById('cdlink');
	row.style.display = 'none';
	getSubTotals();
}

function hidebooks(){
	//set the quantity of cds to 0
	document.cart.book_quantity.value = 0;
	//set the book subtotal to 0
	document.cart.book_subtotal.value = 0;

	//hide book row in shopping cart
	row = document.getElementById('bookrow');
	row.style.display = 'none';

	//show the 'add book' link
	row = document.getElementById('booklink');
	row.style.display = 'block';
	getSubTotals();
}

function showbooks(){
	//set the quantity of books to 1
	document.cart.book_quantity.value = 1;
	//calculate the book subtotal
	getSubTotals();

	//show the book row in shopping cart
	row = document.getElementById('bookrow');
	row.style.display = 'block';	

	//hide the 'add book' link
	row = document.getElementById('booklink');
	row.style.display = 'none';
	getSubTotals();
}

function hidepacks(){
	//set the quantity of cds to 0
	document.cart.pack_quantity.value = 0;
	//set the pack subtotal to 0
	document.cart.pack_subtotal.value = 0;

	//hide pack row in shopping cart
	row = document.getElementById('packrow');
	row.style.display = 'none';

	//show the 'add pack' link
	row = document.getElementById('packlink');
	row.style.display = 'block';
	getSubTotals();
}

function showpacks(){
	//set the quantity of packs to 1
	document.cart.pack_quantity.value = 1;
	//calculate the pack subtotal
	getSubTotals();

	//show the pack row in shopping cart
	row = document.getElementById('packrow');
	row.style.display = 'block';	

	//hide the 'add pack' link
	row = document.getElementById('packlink');
	row.style.display = 'none';
	getSubTotals();
}

function PopUp(ref){	
	var strFeatures="toolbar=no,status=no,menubar=no,location=no"
	strFeatures=strFeatures+",scrollbars=yes,resizable=yes,height=330,width=500"
	
	newWin = window.open(ref,"TellObj",strFeatures);
       newWin.opener = top;
}


function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}
function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_preloadImages() { //v3.0
 var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
   var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
   if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}
//-->
</script>
<link rel="stylesheet" href="styles.css" type="text/css">
<style type="text/css">
<!--
.style1 {font-size: 12px;
	font-weight: bold;
}
-->
</style>
</head>
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    <td width="135" bgcolor="#FFFFFF" valign="top"><p><img name="curve1" src="images/curve1.gif" width="135" height="188" border="0"></p>
      
      <p align="center"><a href="javascript:PopUp('secure.html')">Secure<br>
        Shopping</a> </p> </p>
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<p><font color="#66CC00"><strong>&quot;I 
                    would highly recommend it&quot;</strong></font><br>
                    <em>Dr Rosemary Kilpatrick, Queen's University, Belfast </em></p>
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