/************************************************************************************************************
(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 = './media/administrator/doba/ajax.addProduct.php';
var url_removeProductFromBasket = './media/administrator/doba/ajax.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,userid)
{
	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(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,userid);

//var itemBox = document.getElementById('shopping_cart_items');
//	if(itemBox.rows.length>3){
		//show scroll up/down
//		document.getElementById('scrolltop2').innerHTML = '<a href="#null" onmouseover="scrollDivUp(\'my_cart\')" onmouseout="stopMe()">Scroll Up</a>';
//		document.getElementById('scrollbot2').innerHTML = '<a href="#null" onmouseover="scrollDivDown(\'my_cart\')" onmouseout="stopMe()" >Scroll Down</a>';	
//	}
}

function loadShoppingCart(){
		
}

function flyToBasket(productId,userid)
{
	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 + '","'+userid+'")',10); else ajaxAddProduct(productId,userid);	
}

function showAjaxBasketContent(ajaxIndex)
{

	// Getting a reference to the shopping cart items table
	var itemBox = document.getElementById('shopping_cart_items');
	var productItems = ajaxIndex.split('|||');
	//console.log(document.getElementById('shopping_cart_items_product' + productItems[0]));
	if(document.getElementById('shopping_cart_items_product' + productItems[0])){	// A product with this id is already in the basket - just add number items
		//console.log('adding to qty');
		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;
		var price = productItems[3];
		//console.log('added to qty');
		//price = price*items;
		//price = price.toFixed(2);
		//row.cells[3].innerHTML = price;
	}else{	// Product isn't already in the basket - add a new row
		
		var trr = itemBox.insertRow(-1);
		trr.id = 'shopping_cart_items_productt' + productItems[0]

		var td = trr.insertCell(-1);
		td.colSpan=5;
		td.innerHTML = productItems[2]; 
				
		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);
			// Description

		var td = tr.insertCell(-1);
		td.innerHTML = productItems[1]; 	// Description

		var td = tr.insertCell(-1);
		td.style.textAlign = 'right';
		td.innerHTML = "$"; 	// Price
				
		var td = tr.insertCell(-1);
		td.style.textAlign = 'left';
		var price = productItems[3];
		td.innerHTML = productItems[3]; 	// Price	
		
		var td = tr.insertCell(-1);
		var a = document.createElement('A');
		td.appendChild(a);
		
		a.href = 'javascript:void(0);';
		a.onclick = function(){ makeRequest("shared/administrator/doba/ajax.loadShoppingCart.php","?removeitem="+productItems[0]+"&action=remove","shopping_cart");};
	
		var img = document.createElement('IMG');
		img.src = 'http://www.omnisitebuilder.com/administrator/common/image/remove.gif';
		img.style.border = '0px';
		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 + (parseFloat(itemBox.rows[no].cells[0].innerHTML) * parseFloat(itemBox.rows[no].cells[3].innerHTML));
			no++;
		}		
		document.getElementById('shopping_cart_totalprice').innerHTML = txt_totalPrice + "$"+totalPrice.toFixed(2);
	}
}

function removeProductFromBasket(productId)
{
	var productRow = document.getElementById('shopping_cart_items_productt' + productId);

		productRow.parentNode.removeChild(productRow);	


	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('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		
makeCartRequest("shared/administrator/doba/ajax.removeProduct.php","?productId="+productId);

}

function ajaxAddProduct(productId,userid)
{
//	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		
makeCartRequest("shared/administrator/doba/ajax.addProduct.php","?productId="+productId+"&userid="+userid);

}

 function makeCartRequest(url, parameters) {
	  http_request = false;
      if (window.XMLHttpRequest) { // Mozilla, Safari,...
         http_request = new XMLHttpRequest();
         if (http_request.overrideMimeType) {
         	// set type accordingly to anticipated content type
            //http_request.overrideMimeType('text/xml');
            http_request.overrideMimeType('text/html');
         }
      } else if (window.ActiveXObject) { // IE
         try {
            http_request = new ActiveXObject("Msxml2.XMLHTTP");
         } catch (e) {
            try {
               http_request = new ActiveXObject("Microsoft.XMLHTTP");
            } catch (e) {}
         }
      }
      if (!http_request) {
         alert('Cannot create XMLHTTP instance');
         return false;
      }
      http_request.onreadystatechange = alertCartContents;
      http_request.open('GET', url + parameters, true);
      http_request.send(null);
   }

   function alertCartContents() {
      if (http_request.readyState == 4) {
         if (http_request.status == 200) {
            //alert(http_request.responseText);
            result = http_request.responseText;

showAjaxBasketContent(result);

            //document.getElementById('shopping_cart').innerHTML = result;            
         } else {
            alert('There was a problem with the request.');
         }
      }
   }