/************************************************************************************************************
(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 = '/cart/addProduct.php';
var url_removeProductFromBasket = '/cart/removeProduct.php';
var url_refreshCart = '/cart/refreshCart.php';
var txt_totalPrice = ' на сумму: ';


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

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)
{
	if(!shopping_cart_div)shopping_cart_div = document.getElementById('cart_cont');
	if(!flyingDiv){
		flyingDiv = document.createElement('DIV');
		flyingDiv.style.position = 'absolute';
		document.body.appendChild(flyingDiv);
	}
	var productSize = 0;
	if (document.getElementById('tovar_size')) productSize = document.getElementById('tovar_size').value;
	var productColor = 0;
	if (document.color.tovar_color) productColor = getRadioGroupValue(document.color.tovar_color);
	var productId2 = productId + '-' + productSize + '-' + productColor;
	shopping_cart_x = shoppingCart_getLeftPos(shopping_cart_div);
	shopping_cart_y = shoppingCart_getTopPos(shopping_cart_div);

	currentProductDiv = document.getElementById('slidingProduct' + productId);
	
	currentXPos = shoppingCart_getLeftPos(currentProductDiv);
	currentYPos = shoppingCart_getTopPos(currentProductDiv);
	
	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(productId2);
	
}


function flyToBasket(productId)
{
	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 + '")',10); else 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
	
	if(document.getElementById('shopping_cart_items_product' + productItems[0])){	// A product with this id is allready in the basket - just add number items
		var row = document.getElementById('shopping_cart_items_product' + productItems[0]);
		var items = row.cells[0].innerHTML /1;
		items = items + 1;
		row.cells[0].innerHTML = items;
	}else{	// Product isn't allready in the basket - add a new row
		var tr = itemBox.insertRow(-1);
		tr.id = 'shopping_cart_items_product' + productItems[0]
		
		var td = tr.insertCell(-1);
		td.innerHTML = '1'; 	// Number of items
		
		var td = tr.insertCell(-1);
		td.innerHTML = productItems[1]; 	// Description
		
		var td = tr.insertCell(-1);
		td.style.textAlign = 'right';
		td.innerHTML = productItems[2]; 	// Price	
		
		var td = tr.insertCell(-1);
		var a = document.createElement('A');
		td.appendChild(a);
		a.href = '#';
		a.onclick = function(){ removeProductFromBasket(productItems[0]); };
		var img = document.createElement('IMG');
		img.src = '/img/remove.gif';
		a.appendChild(img);
		//td.innerHTML = '<a href="#" onclick="removeProductFromBasket("' + productItems[0] + '");return false;"><img src="images/remove.gif"></a>';	
	} 


	updateTotalPrice();
	
	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;
	var totalKvo = 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);
			totalKvo = totalKvo + (itemBox.rows[no].cells[0].innerHTML.replace(/[^0-9]/g) * 1);
			
		}		
		document.getElementById('shopping_cart_totalprice').innerHTML = '<strong>' + totalKvo + '</strong>' + txt_totalPrice + '<strong>' + totalPrice.toFixed(0) + ' руб.</strong>';
		
	}	
	
}

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 RefreshBasketOld(productId,kvo,price)
{
	var ajaxIndex = ajaxObjects.length;
	ajaxObjects[ajaxIndex] = new sack();
	ajaxObjects[ajaxIndex].requestFile = url_refreshCart;	// Saving product in this file
	ajaxObjects[ajaxIndex].setVar('productIdToRefresh',productId);
	ajaxObjects[ajaxIndex].setVar('kvo',kvo);
	ajaxObjects[ajaxIndex].onCompletion = function(){ ajaxRefreshCart(ajaxIndex,productId,kvo,price); };	// Specify function that will be executed after file has been found
	ajaxObjects[ajaxIndex].runAJAX();		// Execute AJAX function
}


function RefreshBasket(productId,kvo,price)
{
	var ajaxIndex = ajaxObjects.length;

	var prod_id4refresh = productId.split('-');
	
	ajaxObjects[ajaxIndex] = new sack();
	ajaxObjects[ajaxIndex].requestFile = url_refreshCart;	// Saving product in this file
	ajaxObjects[ajaxIndex].setVar('productIdToRefresh',prod_id4refresh[0]);
	ajaxObjects[ajaxIndex].setVar('dopIdToRefresh',prod_id4refresh[1]);	
	ajaxObjects[ajaxIndex].setVar('colorIdToRefresh',prod_id4refresh[2]);	
	ajaxObjects[ajaxIndex].setVar('kvo',kvo);
	ajaxObjects[ajaxIndex].onCompletion = function(){ ajaxRefreshCart(ajaxIndex,productId,kvo,price); };	// Specify function that will be executed after file has been found
	ajaxObjects[ajaxIndex].runAJAX();		// Execute AJAX function
}

function del_cart(productId)
{
	var ajaxIndex = ajaxObjects.length;

	var prod_id4refresh = productId.split('-');
	
	ajaxObjects[ajaxIndex] = new sack();
	ajaxObjects[ajaxIndex].requestFile = url_refreshCart;	// Saving product in this file
	ajaxObjects[ajaxIndex].setVar('productIdToRefresh',prod_id4refresh[0]);
	ajaxObjects[ajaxIndex].setVar('dopIdToRefresh',prod_id4refresh[1]);
	ajaxObjects[ajaxIndex].setVar('colorIdToRefresh',prod_id4refresh[2]);
	ajaxObjects[ajaxIndex].setVar('kvo',0);
	ajaxObjects[ajaxIndex].onCompletion = function(){ ajaxDelCart(ajaxIndex,productId); };	// Specify function that will be executed after file has been found
	ajaxObjects[ajaxIndex].runAJAX();		// Execute AJAX function
}


function ajaxDelCart(ajaxIndex,productId)
{
	if(ajaxObjects[ajaxIndex].response!='')
	{
		document.getElementById("cart_line"+productId).className = 'del_cart_line';
		document.getElementById("itog").innerHTML='Сумма заказа: <span>' + ajaxObjects[ajaxIndex].response + ' руб.</span>';
	}
}




function ajaxRefreshCart(ajaxIndex,productId,kvo,price)
{
	if(ajaxObjects[ajaxIndex].response!='')
	{
		document.getElementById("cs_price_all"+productId).innerHTML=Math.round(kvo*price*100)/100 + ' руб.</span>';
		document.getElementById("itog").innerHTML='Сумма заказа: <span>' + ajaxObjects[ajaxIndex].response + ' руб.</span>';
	}
}





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

function ajaxRemoveProduct(productId)
{
	var ajaxIndex = ajaxObjects.length;
	
	var prod_id_all = productId.split('-');
	
	ajaxObjects[ajaxIndex] = new sack();
	ajaxObjects[ajaxIndex].requestFile = url_removeProductFromBasket;	// Saving product in this file
	ajaxObjects[ajaxIndex].setVar('productIdToRemove',prod_id_all[0]);
	ajaxObjects[ajaxIndex].setVar('dopIdToRemove',prod_id_all[1]);
	ajaxObjects[ajaxIndex].setVar('colorIdToRemove',prod_id_all[2]);
	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;
	
	var prod_id_all = productId.split('-');
	
	ajaxObjects[ajaxIndex] = new sack();
	ajaxObjects[ajaxIndex].requestFile = url_addProductToBasket;	// Saving product in this file
	ajaxObjects[ajaxIndex].setVar('productId',prod_id_all[0]);
	ajaxObjects[ajaxIndex].setVar('productSize',prod_id_all[1]);
	ajaxObjects[ajaxIndex].setVar('productColor',prod_id_all[2]);
	ajaxObjects[ajaxIndex].onCompletion = function(){ showAjaxBasketContent(ajaxIndex); };	// Specify function that will be executed after file has been found
	ajaxObjects[ajaxIndex].runAJAX();		// Execute AJAX function		
}

function getRadioGroupValue(radioObj) {
	if(!radioObj)
		return "";
	var radioLength = radioObj.length;
	if(radioLength == undefined)
		if(radioObj.checked)
			return radioObj.value;
		else
			return "";
	for(var i = 0; i < radioLength; i++) {
		if(radioObj[i].checked) {
			return radioObj[i].value;
		}
	}
	return "";
}