/************************************************************************************************************
(C) www.dhtmlgoodies.com, March 2006

This is a script from www.dhtmlgoodies.com. You will find this and a lot of other scripts at our website.

Terms of use:
You are free to use this script as long as the copyright message is kept intact. However, you may not
redistribute, sell or repost it without our permission.

Version:
	1.0	Released	March. 3rd 2006

Thank you!

www.dhtmlgoodies.com
Alf Magne Kalleland

************************************************************************************************************/

var flyingSpeed = 25;
var url_addProductToBasket = 'addProduct.php';
var url_removeProductFromBasket = 'removeProduct.php';
var txt_totalPrice = 'Total: ';


var shopping_cart_div = false;
var flyingDiv = false;
var currentProductDiv = false;

var currcolprod = false;
var currentcolor = '';

var shopping_cart_x = false;
var shopping_cart_y = false;

var slide_xFactor = false;
var slide_yFactor = false;

var diffX = false;
var diffY = false;

var currentXPos = false;
var currentYPos = false;

var ajaxObjects = new Array();


function shoppingCart_getTopPos(inputObj)
{
  var returnValue = inputObj.offsetTop;
  while((inputObj = inputObj.offsetParent) != null){
  	if(inputObj.tagName!='HTML')returnValue += inputObj.offsetTop;
  }
  return returnValue;
}

function shoppingCart_getLeftPos(inputObj)
{
  var returnValue = inputObj.offsetLeft;
  while((inputObj = inputObj.offsetParent) != null){
  	if(inputObj.tagName!='HTML')returnValue += inputObj.offsetLeft;
  }
  return returnValue;
}


function addToBasket(productId,statid)
{
	if(!shopping_cart_div)shopping_cart_div = document.getElementById('shopping_cart');
	if(!flyingDiv){
		flyingDiv = document.createElement('DIV');
		flyingDiv.style.position = 'absolute';
		document.body.appendChild(flyingDiv);
	}

	shopping_cart_x = shoppingCart_getLeftPos(shopping_cart_div);
	shopping_cart_y = shoppingCart_getTopPos(shopping_cart_div);

	currentProductDiv = document.getElementById('slidingProduct' + productId);
    currcolprod = document.getElementById('colourid' + productId);

    currentcolor = currcolprod.value;

	currentXPos = shoppingCart_getLeftPos(currentProductDiv);
	currentYPos = shoppingCart_getTopPos(currentProductDiv);

	currentXPos = 70;
	currentYPos = 500;

	diffX = shopping_cart_x - currentXPos;
	diffY = shopping_cart_y - currentYPos;

	var shoppingContentCopy = currentProductDiv.cloneNode(true);
	shoppingContentCopy.id='';
	flyingDiv.innerHTML = '';
	flyingDiv.style.left = currentXPos + 'px';
	flyingDiv.style.top = currentYPos + 'px';
	flyingDiv.appendChild(shoppingContentCopy);
	flyingDiv.style.display='block';
	flyingDiv.style.width = currentProductDiv.offsetWidth + 'px';
	flyToBasket(productId,statid);

}


function flyToBasket(productId,statid)
{
	var maxDiff = Math.max(Math.abs(diffX),Math.abs(diffY));
	var moveX = (diffX / maxDiff) * flyingSpeed;;
	var moveY = (diffY / maxDiff) * flyingSpeed;

	currentXPos = currentXPos + moveX;
	currentYPos = currentYPos + moveY;

	flyingDiv.style.left = Math.round(currentXPos) + 'px';
	flyingDiv.style.top = Math.round(currentYPos) + 'px';


	if(moveX>0 && currentXPos > shopping_cart_x){
		flyingDiv.style.display='none';
	}
	if(moveX<0 && currentXPos < shopping_cart_x){
		flyingDiv.style.display='none';
	}

	if(flyingDiv.style.display=='block')
      {setTimeout('flyToBasket("' + productId + '","' + statid + '")',10);}
       else
      {
	   flyingDiv.style.display='none';
       if(statid!=0)ajaxAddProduct(productId);
      }
}

function showAjaxBasketContent(ajaxIndex)
{
	// Getting a reference to the shopping cart items table
	var itemBox = document.getElementById('shopping_cart_items');

	var productItems = ajaxObjects[ajaxIndex].response.split('|||');	// Breaking response from Ajax into tokens
    var proditm = parseInt(productItems[0]);
	
	var priceUpdate = 0;
	if(document.getElementById('shopping_cart_items_product' + proditm)){	// A product with this id is allready in the basket - just add number items
		var row = document.getElementById('shopping_cart_items_qty' + proditm);
		var qty = row.innerHTML /1;
		qty = qty + 1;
		row.innerHTML = qty;
		priceUpdate =  document.getElementById('shopping_cart_items_price' + proditm).innerHTML/1;
	}else{	// Product isn't allready in the basket - add a new row
		var items = itemBox.innerHTML;
			
		itemBox.innerHTML=	items + '<div id=\'shopping_cart_items_product' + proditm + '\' class=\'item\'>' +
							 	'<div id=\'shopping_cart_items_desc' + proditm + '\' class=\'desc\'>' + productItems[1] + '</div>' +
				                '<div id=\'shopping_cart_items_price' + proditm + '\' class=\'price\'>' + productItems[2] + '</div>' +
				  				'<div class=\'qtytxt\'>Qty. <div id=\'shopping_cart_items_qty' + proditm + '\' class=\'qty\'>1</div></div>' +
				     			'<br class=\'clearfloat\'/></div>';
		
		priceUpdate = productItems[2];
	}


	//updateTotalPrice();
	var total = document.getElementById('shopping_cart_totalprice').innerHTML; 
	totalPrice = (total.replace(/,/g,'')/1) + priceUpdate/1;
	document.getElementById('shopping_cart_totalprice').innerHTML = totalPrice.toFixed(2);
   	if(totalPrice == 0){xcartstat('0');}
	

	ajaxObjects[ajaxIndex] = false;

}

function updateTotalPrice()
{
	var itemBox = document.getElementById('shopping_cart_items');
	// Calculating total price and showing it below the table with basket items
	var totalPrice = 0;
	if(document.getElementById('shopping_cart_totalprice')){
		for(var no=1;no<itemBox.rows.length;no++){
			totalPrice = totalPrice + (itemBox.rows[no].cells[0].innerHTML.replace(/[^0-9]/g) * itemBox.rows[no].cells[2].innerHTML);

		}
		document.getElementById('shopping_cart_totalprice').innerHTML = totalPrice.toFixed(2);
       	if(totalPrice == 0){xcartstat('0');}
	}

}

function removeProductFromBasket(productId)
{
	var productRow = document.getElementById('shopping_cart_items_product' + productId);

	var numberOfItemCell = productRow.cells[0];
	if(numberOfItemCell.innerHTML == '1'){
		productRow.parentNode.removeChild(productRow);
	}else{
		numberOfItemCell.innerHTML = numberOfItemCell.innerHTML/1 - 1;
	}
	updateTotalPrice();
	ajaxRemoveProduct(productId);
}

function ajaxValidateRemovedProduct(ajaxIndex)
{
	if(ajaxObjects[ajaxIndex].response!='OK')alert('Error while removing product from the database');

}

function ajaxRemoveProduct(productId)
{
	var ajaxIndex = ajaxObjects.length;
	ajaxObjects[ajaxIndex] = new sack();
	ajaxObjects[ajaxIndex].requestFile = url_removeProductFromBasket;	// Saving product in this file
	ajaxObjects[ajaxIndex].setVar('productIdToRemove',productId);
	ajaxObjects[ajaxIndex].setVar('rndval',new Date().getTime());
	ajaxObjects[ajaxIndex].onCompletion = function(){ ajaxValidateRemovedProduct(ajaxIndex); };	// Specify function that will be executed after file has been found
	ajaxObjects[ajaxIndex].runAJAX();		// Execute AJAX function
}

function ajaxAddProduct(productId)
{
	var ajaxIndex = ajaxObjects.length;
	ajaxObjects[ajaxIndex] = new sack();
	ajaxObjects[ajaxIndex].requestFile = url_addProductToBasket;	// Saving product in this file
	ajaxObjects[ajaxIndex].setVar('productId',productId);
	ajaxObjects[ajaxIndex].setVar('colourId',currentcolor);
	ajaxObjects[ajaxIndex].onCompletion = function(){ showAjaxBasketContent(ajaxIndex); };	// Specify function that will be executed after file has been found
	ajaxObjects[ajaxIndex].runAJAX();		// Execute AJAX function
}