function dkTal(n){
  n += "";
  if(!n.match(/^-?\d+([,\.]\d+)*$/)){
    alert("fejl");
    return "";
  }

  decs = (Math.pow(10,2)+"").substring(1);

  if(n.indexOf(".")>n.indexOf(",") && n.indexOf(",")>-1 || n.indexOf(",")!=n.lastIndexOf(",")){
    n = n.replace(/,/g,"");
  }else if(n.indexOf(",")>-1 || n.indexOf(".")!=n.lastIndexOf(".")){
    n = n.replace(/\./g,"").replace(/,/g,".");
  }

  if(n.indexOf(".")==-1 && n.indexOf(",")==-1){
                      return ins1000Sep(n + "," + decs);
                      }

  n = Math.round(+n*Math.pow(10,2))/Math.pow(10,2)+"";
  n += n.indexOf(".")>-1 ? decs : "." + decs;
  n = n.substring(0,n.indexOf(".") + 3);
  return ins1000Sep(n.replace(/\./,","));
}


function ins1000Sep(v){
  v = v.split(",");
  v[0] = v[0].split("").reverse().join("");
  v[0] = v[0].replace(/(\d{3})/g,"$1.");
  v[0] = v[0].split("").reverse().join("");
  v[0] = v[0].replace(/^(-?)\./,"$1");
  return v.join(",");
}



var flyingSpeed = 10;
var url_addProductToBasket = 'handleProduct.asp?sid='+Math.random();
var url_removeProductFromBasket = 'handleProduct.asp?sid='+Math.random();
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, antal,md5value)
{
if(isNaN(antal)){
alert('Ikke gyldig værdi du vil ligge i kurven');
return false;
}
//alert(" addToBasket( " + productId + " , " + antal + " , "+ md5value + ")");
	
	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;
	

	//Her springer vi flyveturen over
	//ajaxAddProduct(productId,antal);
	
	
	
	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, antal,md5value);
	
	
	
	
}


function flyToBasket(productId,antal,md5value)
{
//alert("flyToBasket("+ productId +" , " + antal + " , " + md5value + ")");
	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 + '","'+antal+'","'+md5value+'")',10); 
	else 
		opdaterKurv(productId,md5value,antal)
		//ajaxAddProduct(productId,antal,md5value);	
}

function showAjaxBasketContent(ajaxIndex,antal,md5value)
{
alert("showAjaxBasketContent("+ajaxIndex+" , "+ antal + " , " +md5value + ")");

	// Getting a reference to the shopping cart items table
	var itemBox = document.getElementById('shopping_cart_items');
	
	
	alert("AJAX: " + ajaxObjects[ajaxIndex]);
	alert("URLString: " + ajaxObjects[ajaxIndex].URLString);
	alert("response: " + ajaxObjects[ajaxIndex].response);
	alert("responseXML: " + ajaxObjects[ajaxIndex].responseXML);
	alert("responseStatus[0]: " + ajaxObjects[ajaxIndex].responseStatus[0]);
	alert("responseStatus[1]: " + ajaxObjects[ajaxIndex].responseStatus[1]);
	
	
	var productItems = ajaxObjects[ajaxIndex].response.split('|||');	// Breaking response from Ajax into tokens
	
	if(document.getElementById('shop_produkt' + productItems[0])){	// A product with this id is allready in the basket - just add number items
		var row = document.getElementById('shop_produkt' + productItems[0]);
		
		var prices = row.cells[2].innerHTML;
		items = productItems[2];
		prices = productItems[3]
		
		
		row.cells[2].innerHTML = parseFloat(productItems[3]).toFixed(2);;
		row.cells[1].innerHTML = items;
	}else{	// Product isn't allready in the basket - add a new row
		var tr = itemBox.insertRow(-1);
		tr.id = 'shop_produkt' + productItems[0]
		
		/*
		alert(productItems[0]);//id
		alert(productItems[1]);//beskrivelse
		alert(productItems[2]);//antal
		alert(productItems[3]);//sum
		alert(productItems[4]);//md5
		*/
		
		
		var td = tr.insertCell(-1);
		td.className ='kurvprodukt'; 
		td.innerHTML = productItems[1]; 	// Description
		
		
		var td = tr.insertCell(-1);
		td.className ='kurvantal'; 
		td.innerHTML = antal; 	// Number of items
		
		
		var td = tr.insertCell(-1);
		td.className ='kurvpris'; 
		myprice=parseFloat(productItems[3]).toFixed(2);
				
		td.innerHTML = myprice; 	// Price
		
		var td = tr.insertCell(-1);
			
		//alert(td.innerHTML);
		
		
		td.innerHTML = '<a href="#" onclick="removeProductFromBasket('+productItems[0]+',\''+productItems[4]+'\');return false;"><img src="images/remove.gif"></a>';	
	} 
	
	updateTotalPrice();
	
	ajaxObjects[ajaxIndex] = false;		
	
	alert("slutter");

	
}

function updateTotalPrice()
{
//alert("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++){
			//alert((itemBox.rows[no].cells[2].innerHTML));
			prislinie=itemBox.rows[no].cells[2].innerHTML
			prislinie=prislinie.replace(/\./,"")
			prislinie=prislinie.replace(/\,/,".")
			//prislinie=parseFloat(prislinie);
			//alert(prislinie + "--" +parseFloat(prislinie));
			totalPrice = totalPrice + (1* (prislinie));
			
		}	
		//alert(totalPrice);
		document.getElementById('shopping_cart_totalprice').innerHTML = txt_totalPrice + (dkTal(totalPrice));
		//alert(document.getElementById('tilkassen').innerHTML);
		
		if(totalPrice<=0){
			document.getElementById('tilkassen').style.display = "none";
			document.getElementById('tomkurv').style.display = "none";
		}else{
			document.getElementById('tilkassen').style.display = "block";
			document.getElementById('tomkurv').style.display = "block";
		}	

	}	

}

function removeProductFromBasket(productId, md5value)
{
alert("removeProductFromBasket( "+productId+"--"+md5value+")");

	var productRow = document.getElementById('shop_produkt' + productId);
	
	var numberOfItemCell = productRow.cells[1];
	if(numberOfItemCell.innerHTML == '1'){
		productRow.parentNode.removeChild(productRow);	
	}else{
		numberOfItemCell.innerHTML = numberOfItemCell.innerHTML/1 - 1;
	}
	updateTotalPrice();
	ajaxRemoveProduct(productId,md5value);	

}

function ajaxValidateRemovedProduct(ajaxIndex)
{
	if(ajaxObjects[ajaxIndex].response!='OK')alert('Error while removing product from the database');
	
}

function ajaxRemoveProduct(productId,md5value)
{
alert("ajaxRemoveProduct( "+productId+" - "+md5value+ ")");

	var ajaxIndex = ajaxObjects.length;
	ajaxObjects[ajaxIndex] = new sack();
	ajaxObjects[ajaxIndex].requestFile = url_removeProductFromBasket;	// Saving product in this file
	ajaxObjects[ajaxIndex].setVar('productId',productId);
	ajaxObjects[ajaxIndex].setVar('md5value',md5value);
	ajaxObjects[ajaxIndex].setVar('actiontype','remove');
	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,antal,md5value)
{
//alert("ajaxAddProduct "+productId+" , "+antal+" , "+md5value);
	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].setVar('antal',antal);
	ajaxObjects[ajaxIndex].setVar('md5value',md5value);
	ajaxObjects[ajaxIndex].setVar('actiontype','add');
	
	
	ajaxObjects[ajaxIndex].onCompletion = function(){ showAjaxBasketContent(ajaxIndex,antal,md5value); };	// Specify function that will be executed after file has been found
	ajaxObjects[ajaxIndex].runAJAX();		// Execute AJAX function		
}