Simple shoping cart

cart.asp
<%
if not isObject(Session("cart")) then 
	set Session("cart")=Server.CreateObject("Scripting.Dictionary")
end if

add=Request("add")
qty=Request("qty")
del=Request("del")

if add<>"" then
 'check if data is no there
 if not Session("cart").Exists(add) then  'add to cart
 'get data from database this example is without
   set recData=Server.CreateObject("Scripting.Dictionary")
   recData.Add "cart_no",add
   recData.Add "qty",1
   recData.Add "price",100
 'store the cart to it's cart_no
  Session("cart").Add add,recData
 else 'flight_id exists
  'add only the qty
  Session("cart")(add)("qty")=Session("cart")(add)("qty")+CInt(qty)
 end if
end if
if del<>"" then
 'remove from cart
 Session("cart").Remove(del)
end if
'store back to session object

 
'here display your cart
 if IsObject(Session("cart")) then
	if Session("cart").Count>0 then
		cartItems=Session("cart").Items
		For i=Lbound(cartItems) to Ubound(cartItems)
			cart_no=cartItems(i)("cart_no")
			price=cartItems(i)("price")
			qty=cartItems(i)("qty")

			Response.Write (i+1)&": "&cart_no&" - "&price&" - "& qty &"<br>"
		Next
	else
		Response.Write ("ur cart is empty")
	end if
end if
%>



How to use

cart.asp?add=101 - will add this rec id into cart
cart.asp?add=101&qty=2 - will add 2 to qty of the 101
cart.asp?del=101 - will remove this cart