Sum the items in an Amazon wish list (inspired by "Total up the cost of all items in an Amazon wishlist" https://gist.github.com/chrismbarr/3230548)

sum.js

var list = $$("span.a-color-price.a-size-base");
var total=0;
for(i=0; i<list.length;i++){
  total += parseFloat(list[i].innerText.replace("$",""));
}
alert(list.length+" items for a total of: $"+total.toFixed(2));