var flyingSpeed = 20;
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 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('flyPointBasket');
  if(!flyingDiv){
    flyingDiv = document.createElement('DIV');
    flyingDiv.style.position = 'absolute';
    document.body.appendChild(flyingDiv);
  }
  document.getElementById('loader').style.display = 'block';
  shopping_cart_x = shoppingCart_getLeftPos(shopping_cart_div) + 10;
  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 addGoods(productId);
}