function getCookie(c_name)
{
	if (document.cookie.length>0)
	{
		c_start = document.cookie.indexOf(c_name + "=");
		
		if (c_start != -1)
		{
			c_start = c_start + c_name.length+1;
			c_end=document.cookie.indexOf(";", c_start);
			
			if (c_end == -1) c_end = document.cookie.length;
			{
				return unescape(document.cookie.substring(c_start, c_end));
			}
		}
	}
	
	return "";
}

function setCookie(c_name, value, expiredays)
{
	var exdate = new Date();
	
	exdate.setDate(exdate.getDate() + expiredays);
	document.cookie = c_name+ "=" + escape(value) + ((expiredays==null) ? "" : ";expires=" + exdate.toUTCString());
}

function updateCartNumber()
{
	cart = getCookie('cart');
	carts = cart.split('#');
	document.getElementById("cart_number").innerHTML = carts.length;
}

function addToCart(item)
{
	var cart = getCookie('cart');
	var items = cart == '' ? item : cart + '#' + item; 
	
	setCookie('cart', items, 1);
	updateCartNumber();
}