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

(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 = 38;

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('kosikTopObsah');

	if(!flyingDiv){

		flyingDiv = document.createElement('DIV');

		flyingDiv.style.position = 'absolute';
		flyingDiv.style.display = 'block';

		document.body.appendChild(flyingDiv);

	}
	flyingDiv.style.border = '10px';
	

	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);
	
	

}



var opacity = 100;
var opacityIE = 0.99;

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;

	//alert(currentXPos + ' x ' + currentYPos)

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

	flyingDiv.style.top = Math.round(currentYPos) + 'px';	
	
	opacity = opacity - 15
	opacityIE = opacityIE - 0.15
	
	//alert(opacity);
	if(document.all){ // IE rules
	flyingDiv.style.filter = 'alpha(opacity='+opacity+')';
	}else{
	flyingDiv.style.opacity = opacityIE;
	}

	

	

	if(moveX>0 && currentXPos > shopping_cart_x){

		flyingDiv.style.display='none';	
		return true

	}

	if(moveX<0 && currentXPos < shopping_cart_x){

		flyingDiv.style.display='none';	
		return true

	}

		

	//if(flyingDiv.style.display=='block')setTimeout('flyToBasket("' + productId + '")',10); else ajaxAddProduct(productId);	
	if(flyingDiv.style.display=='block')setTimeout('flyToBasket("' + productId + '")',5); //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 = 'images/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;

	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 = txt_totalPrice + totalPrice.toFixed(2);

		

	}	

	

}



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].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].onCompletion = function(){ showAjaxBasketContent(ajaxIndex); };	// Specify function that will be executed after file has been found

	ajaxObjects[ajaxIndex].runAJAX();		// Execute AJAX function		

}*/