var Shop = {

	
	myWindow:0,
	cart:[],
	values:[],
	addToCart:0,
	tmpstr:0,
	
	init:function()
	{
			
		Shop.myWindow = window.open("cart.html", "", "height=auto, width=400px ,status=no, left=350px, top=150px, scrollbar=auto");
		Shop.myWindow.blur();
		

		Shop.values[0] = "Saab 9-3";
		Shop.values[1] = "Volvo S40";
		Shop.values[2] = "BMW 525";
		Shop.values[3] = "Lada";
		Shop.values[4] = "Fiat";
		Shop.values[5] = "Ford";

		for(var j = 0; j < Shop.values.length; ++j)
		{
			Shop.cart[j] = 0;
		}
		
			
	},

	add:function(addNum)
	{

			var get = document.getElementById("shopcart");
			var inputText = get.elements["add"+addNum];
		// hur många som ska läggas till
			addToCart = inputText.value;
		
		Shop.cart[addNum-1] = Shop.cart[addNum-1] + addToCart;
				
		Shop.show();
				
	},
	
	show:function()
	{
		Shop.tmpstr = "";
		for(var i = 0; i < Shop.cart.length; ++i)
		{
			if( Shop.cart[i] != 0 )
			{
				Shop.tmpstr = Shop.tmpstr + Shop.values[i] + ": " + Shop.cart[i] + "<br />";
			}
		}
		
		
		Shop.myWindow.document.getElementById("cart").innerHTML = Shop.tmpstr;
		
		Shop.myWindow.focus();

	
	
	}
		
		
} // Slut på objekt


 	 window.onload = Shop.init();