var products = {
     olv_s:["The Tweet Shirt S",10, "N", "S"],
     olv_m:["The Tweet Shirt M",10, "N", "M"],
     olv_l:["The Tweet Shirt L",10, "N", "L"],
     olv_xl:["The Tweet Shirt XL",10,"N", "XL"],
     olv_xxl:["The Tweet Shirt XXL",10,"N", "XXL"]
}

var shipping = 7;
var shipping_item = 3;