/************************************************************************************************************
(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 = 'Suma: ';


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(document.getElementById('koszyk').style.display = 'none') document.getElementById('koszyk').style.display = 'block';
	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);
	
	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(productId);
	
}


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');
	if(ajaxObjects[ajaxIndex].response != 'NO')
	{
		var productItems = ajaxObjects[ajaxIndex].response.split('|||');	// Breaking response from Ajax into tokens
		
			var tr = itemBox.insertRow(-1);
			tr.id = 'shopping_cart_items_product'+ productItems[0]
			
			/*var td = tr.insertCell(-1);
			td.style.textAlign = 'right';
			td.innerHTML = '1'; 	// Number of items
			*/
			var td = tr.insertCell(-1);
			td.style.textAlign = 'left';
			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.style.borderWidth = 0;
			img.src = 'images/remove.gif';
			a.appendChild(img);
			//td.innerHTML = '<a href="#" onclick="removeProductFromBasket("' + productItems[0] + '");return false;"><img src="images/remove.gif"></a>';	
	
	
		updateTotalPrice();
	} else {
		alert('Wybrane przez ciebie produkty znajdują się już na twoim koncie lub w koszyku.');
		if(document.getElementById('shopping_cart_items').rows.length == 1) document.getElementById('koszyk').style.display = 'none';
	}
	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 + (1 * itemBox.rows[no].cells[1].innerHTML);
		}		
		document.getElementById('shopping_cart_totalprice').innerHTML = txt_totalPrice + totalPrice.toFixed(2);
		
	}	
	
}

function removeProductFromBasket(productId)
{
	var productRow = document.getElementById('shopping_cart_items_product' + productId);
	productRow.parentNode.removeChild(productRow);	
	updateTotalPrice();
	ajaxRemoveProduct(productId);
}

function ajaxValidateRemovedProduct(ajaxIndex)
{
	if(ajaxObjects[ajaxIndex].response!='OK')alert('Błąd w usuwaniu pozycji bazy');
}

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].onCompletion = function(){ ajaxValidateRemovedProduct(ajaxIndex); ajaxRemovePozycja(productId)};	// Specify function that will be executed after file has been found
	ajaxObjects[ajaxIndex].runAJAX();		// Execute AJAX function	
	
	
}
function ajaxRemovePozycja(productId)
{
	if(document.getElementById('shopping_cart_items').rows.length == 1) document.getElementById('koszyk').style.display = 'none';
	
	if(document.getElementById('moje_gazeta_' + productId)) 
	{
		document.getElementById('moje_gazeta_' + productId).style.display = 'none';
	}
	if(document.getElementById('gazety').getElementsByTagName("table"))
	{
		var q = document.getElementById('gazety').getElementsByTagName("blockquote");
		
		var j=0;
		for(i=1; i<q.length; i++)
		{
			if(q[i].style.display == 'none') 
			{
				j++;
			}
		}
		e = parseInt(j);
		w = parseInt(q.length);
		a = parseInt(w-j);
		//alert( e+' '+w+' '+a );
		if(a <=1 ) 
		{
			document.getElementById('brak_gazet').style.display = 'block';
			document.getElementById('brak_gazet_a').style.display = 'none';
		}
		
	}
}
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);
	if(document.getElementById('numer_' + productId))
	{	
		var numerId = document.getElementById('numer_' + productId).value;
		ajaxObjects[ajaxIndex].setVar('numerId',numerId);
	}
	ajaxObjects[ajaxIndex].onCompletion = function(){ showAjaxBasketContent(ajaxIndex); };	// Specify function that will be executed after file has been found
	ajaxObjects[ajaxIndex].runAJAX();		// Execute AJAX function		
}