function countCart()
{
	var total = 0;
	var total_articles = 0;
	var nb_articles = [];
	$each(document.forms['shopForm'].elements, function(el){
		
		if(el.name.test('aa_')) {
		var article = parseInt(el.name.substr(3));
  		nb_articles[article] =  el.value;	
  		total_articles += el.value;
  		}
	
	});
	
	$each(document.forms['shopForm'].elements, function(el){
		
		if(el.name.test('qq_')) {
		var article = parseInt(el.name.substr(3));
  		total +=  nb_articles[article] * el.value;	
  		}
	
	});
	if(total > 0)
	{
		total += parseFloat(document.forms['shopForm'].prix_livraison.value)
		$('count').setHTML('<b>' + total + ' &euro;</b>');
	}
	else $('count').setHTML('<b>' + 0 + ' &euro;</b>');
	//alert(total);
}

function updateCart(el, qt)
{
    //alert ('Formulaire #ID'+frm);
    var q = document.forms['shopForm'].elements[el].value;
    var quantity = parseInt(q) + parseInt(qt);
    if (quantity < 0)
    {
      quantity = 0;
    }
    document.forms['shopForm'].elements[el].value = quantity;
    countCart();
}

function emptyCart(el)
{
    document.forms['shopForm'].elements[el].value = 0;
}