// JavaScript Document
// pklCart
// Function for the shopping cart
// Paul Leasure V 0.1
/* PKL SHOPPING CART AUG 2008
related files: 	pklCart.js, 
				cart_functions.php, 
				insert_cart_prod_row.php, 
				pkl_chkout_head.php
				pkl_cart.css
*/
function filterNum(str) {
reg = /^\$|,/g;
// remove "$" and ","
if( str != null){ return str.replace(reg, ""); }
}
//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
//+ Jonas Raoni Soares Silva
//@ http://jsfromhell.com/number/fmt-money [v1.2]
Number.prototype.formatMoney = function(c, d, t){
    var n = this, c = isNaN(c = Math.abs(c)) ? 2 : c, d = d == undefined ? "," : d, t = t == undefined ? "." : t, s = n < 0 ? "-" : "",
    i = parseInt(n = Math.abs(+n || 0).toFixed(c)) + "", j = (j = i.length) > 3 ? j % 3 : 0;
    return s + (j ? i.substr(0, j) + t : "") + i.substr(j).replace(/(\d{3})(?=\d)/g, "$1" + t)
    + (c ? d + Math.abs(n - i).toFixed(c).slice(2) : "");
};// END:Number.prototype.formatMoney
/* Number.formatMoney([floatPoint: Integer = 2], [decimalSep: String = ","], [thousandsSep: String = "."]): */
//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
/*
function taxRate()
{
tr = document.getElementById("cart_tax_rate").value;
taxrate = filterNum(tr);
taxRate = Number(taxrate);
return taxRate;
}

function ShippingCost()
{
sh = document.getElementById("cart_shipping_cost").value;
ship = filterNum(sh);
shippingCost = Number(ship);
return shippingCost
}

function addTaxAndShippingTo(subTotal)
{

  grandTotal = ((subTotal * taxRate() ) + ShippingCost()  )
  return grandTotal;
}

function addToCart(prod_id){
	
	
	
}

*/


function getCartTotal()
{
var numOfRows = document.getElementById("num_of_rows").value;
var rowAmount = 0;
var row;
var cartSubTotal = 0;
var shippingCost = 10;
var taxRate = .0725;
for (row =0; row<=numOfRows; row++)
		{
		  if(document.getElementById("item_total-"+row) !=null)
		  	{
		 	 rowAmount = document.getElementById("item_total-"+row).firstChild.nodeValue;
		  	//alert('Row Total has been included and is '+rowAmount );
		  		 n = filterNum(rowAmount);
		  		 cartSubTotal += Number(n);
			}//if
		} //for
//alert('cart total = '+cartTotal );
//alert('SUB total = '+subTot );
document.getElementById("cart_sub_total").innerHTML = "$"+cartSubTotal.formatMoney(2, ".", ",");
var tax = Number(taxRate) * Number(cartSubTotal);
//alert('cart total = '+cartTotal+' and tx = '+tax );
document.getElementById("cart_tax").innerHTML = "$"+tax.formatMoney(2, ".", ",");
var shipping = Number(shippingCost);
//alert('shipping= '+shipping );
document.getElementById("cart_shipping").innerHTML = "$"+shipping.formatMoney(2, ".", ",");
var cartGrandTotal = parseFloat(cartSubTotal+tax+shipping);
//alert('Grand Ttl = '+cartGrandTotal );
document.getElementById("cart_grand_total").innerHTML = "$"+cartGrandTotal.formatMoney(2, ".", ",");
//return cartTotal;
}//function getCartTotal() 

function updateCartRow(cart_row,cpi_id,prod_id,action) {
var index = document.getElementById("cartRowQty-"+cart_row).options.selectedIndex;
var quantity = document.getElementById("cartRowQty-"+cart_row).options[index].value;
var priceReg = document.getElementById("price_reg-"+cart_row).firstChild.nodeValue;
var priceDisc = document.getElementById("price_disc-"+cart_row).firstChild.nodeValue;
var itemTotal = document.getElementById("item_total-"+cart_row).firstChild.nodeValue;

var cartRowInfo = [];

if(action=="update"){
  cartRowInfo[0] = action;
  cartRowInfo[1] = cart_row;
  
  try{
	  	cartRowInfo[2] = document.getElementById("cartProdTypeRow-"+cart_row).value;
		
	 }
catch(error){
		index = document.getElementById("cartProdType-"+cart_row).options.selectedIndex;
  	  	cartRowInfo[2] = document.getElementById("cartProdType-"+cart_row).options[index].value;
    }// try
	
  cartRowInfo[3] = cpi_id;	
	
  try{
	 index = document.getElementById("cartRowSize-"+cart_row).options.selectedIndex;
    cartRowInfo[4] = document.getElementById("cartRowSize-"+cart_row).options[index].id; 
	 }
catch(error){
	cartRowInfo[4] = document.getElementById("cartRowSizeRow-"+cart_row).value;
    }// try

  cartRowInfo[5] = (quantity * filterNum(priceDisc) );
  //alert("quantity="+quantity+", Price="+priceDisc+" = "+cartRowInfo[5]);
  cartRowInfo[6] = quantity;
}//if(action=="update")

if(action=="remove") {
	//var cartSubTotal = document.getElementById("cart_sub_total").firstChild.nodeValue;
	//var subTotal = filterNum(cartSubTotal);// make only number
	//alert('subTotal ='+cartSubTotal );
	//var rowAmount = document.getElementById("item_total-"+cart_row).firstChild.nodeValue;
	//var rowPrice = filterNum(rowAmount);
	//alert('rowPrice = '+rowAmount );
	//var newSubTotal = (subTotal)  - (rowPrice);
	quantity = 0;
	cartRowInfo[0] = action;
	cartRowInfo[1] = cart_row;
	cartRowInfo[6] = quantity;
	cartRowInfo[7] = prod_id;
	var numRows = parseInt(document.getElementById("num_of_rows").value) - 1;
	document.getElementById("num_of_rows").value = numRows;
	//document.getElementById("cart_sub_total").innerHTML = "<span>sub total    $ </span>"+newSubTotal.formatMoney(2, ".", ",");
	//gt = addTaxAndShippingTo(newSubTotal);
	//alert( "Grand Ttl = "+gt);
}//if(action=="remove")

var targetDiv = "cartRow-"+cart_row;
var processFile = "/__shared/_pkl_cart/insert_cart_prod_row.php";
var postVars = "cartRowInfo="+cartRowInfo;
 
useAjax01(postVars,targetDiv,processFile,cart_row);// for fade effect (cart_row) SEE pkl_effects.js

//--BEGIN:------for fade effect SEE pkl_effects.js 
var feedbackDiv = "rowfeedback-"+cart_row;
var fromOpacity = 0;
var toOpacity   = 100;
var time        = 1000;
var fps         = 10;
var origColor = "#FFFFFF";
var fadeColor = "yellow";

FadeOpacity(feedbackDiv, fromOpacity, toOpacity, time, fps);
//--END:------for fade effect SEE pkl_effects.js

}//function updateCartRow(cart_row,cpi_id,prod_id,action) 

function useAjax01(postVars,targetDiv,processFile, cart_row) {
// create an ajax function to go get the products in this cat and display them in the main page 

 var XMLHttpRequestObject = false;
  if (window.XMLHttpRequest) {
	XMLHttpRequestObject = new XMLHttpRequest();
  } else if (window.ActiveXObject) {
	XMLHttpRequestObject = new 
	ActiveXObject("Microsoft.XMLHTTP");
  }
  if(XMLHttpRequestObject) 
  {
	//--BEGIN:------for fade effect SEE pkl_effects.js
	if(cart_row){
	progressIndicator("on", cart_row);
	}
	//--END:------for fade effect SEE pkl_effects.js
	XMLHttpRequestObject.open("POST", processFile); 
    XMLHttpRequestObject.setRequestHeader('Content-Type', 
            'application/x-www-form-urlencoded');  

	XMLHttpRequestObject.onreadystatechange = 
		function() 
				{ 			
					if (XMLHttpRequestObject.readyState == 4 && 
						XMLHttpRequestObject.status == 200) 
						{ 
						document.getElementById(targetDiv).innerHTML =
						XMLHttpRequestObject.responseText;
						getCartTotal();
						updateCartBox();
						//progressIndicator("off");
						}
				} //function
	XMLHttpRequestObject.send(postVars); 
  } 
}// function useAjax01