var whil = n3.children('.trade_item');
var all = 0; var one = [], two = [];

for(var i = 0; i < whil.size(); i++) {
    $('.primary:last', data).children('.tradeoffer_item_list').children('.trade_item').each(function(i){
        one.push($(this).attr("data-economy-item").split('/')[2]);
        two.push($(this).attr("data-economy-item").split('/')[3]);
    });

    var ad = Price("http://steamcommunity.com/economy/itemhover/730/2/" + one[i] + "?o=" + two[i]);

    all += ad;
}

$('#w').html(all);