/************************************************************************************************************
(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 = 10;
var url_addProductToBasket = 'addProduct.php';
var url_removeProductFromBasket = 'removeProduct.php';
var txt_totalPrice = 'Total: ';
var basket_id = 'basket';
var item_id = 'product_';



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;


function ltrim(str) { 
	for(var k = 0; k < str.length && isWhitespace(str.charAt(k)); k++);
	return str.substring(k, str.length);
}
function rtrim(str) {
	for(var j=str.length-1; j>=0 && isWhitespace(str.charAt(j)) ; j--) ;
	return str.substring(0,j+1);
}
function trim(str) {
	return ltrim(rtrim(str));
}
function isWhitespace(charToCheck) {
	var whitespaceChars = " \t\n\r\f";
	return (whitespaceChars.indexOf(charToCheck) != -1);
}


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(basket_id);
	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(item_id + 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 ajaxAddProduct(productId) {

  jQuery.get(HOME_URL+"basket.htm",
        {layout: "clear", id: productId, action: "add",time:new Date().getTime()},
        function(data){
          //alert(data);
          updateBasket();
        }
  );
}

function ajaxRemoveProduct(productId) {

  jQuery.get(HOME_URL+"basket.htm",
        {layout: "clear", id: productId, action: "remove",time:new Date().getTime()},
        function(data){
          updateBasket();
        }
  );
}
function updateBasket() {
  jQuery.get(HOME_URL+"basket.htm",
        {layout: "clear", action: "count",time:new Date().getTime()},
        function(data){

          if (data<=0) {
            jQuery("#basket").text('');
            jQuery("#basket").removeClass('full');
          }else {
            jQuery("#basket").html('<a href="'+HOME_URL+'objednavka.htm"><b>Nákupní košík</b></a> (<span id="basket_count">'+trim(data)+' ks</span>)');
            jQuery("#basket").addClass('full');          
          }
          
        }
  );
}


function addToOrder(productId) {
  jQuery(".objednavka th.nazev").addClass('loading');
  jQuery.get(HOME_URL+"basket.htm",
        {layout: "clear", id: productId, action: "add",time:new Date().getTime()},
        function(data){
          updateBasket();
          loadOrder();
        }
  );
}


function removeFromOrder(productId) {
  jQuery(".objednavka th.nazev").addClass('loading');
  jQuery.get(HOME_URL+"basket.htm",
        {layout: "clear", id: productId, action: "remove",time:new Date().getTime()},
        function(data){
          updateBasket();
          loadOrder();
        }
  );
}
function loadOrder() {

   jQuery.get(HOME_URL+"basket.htm",
    {layout: "clear", action: "get_full_content",time:new Date().getTime()},
    function(data){
      if (trim(data)=="none") {
        jQuery("#oder_form").hide(500);
        jQuery("#basket_content_full").html('<div class="err">Váš košík je prázdný</div>');
      }else {
        jQuery("#basket_content_full").html(data);
        jQuery("#oder_form").show(500);
      }
      jQuery(".objednavka th.nazev").removeClass('loading');      
      }
    );  
}