$(document).ready(function () {
    mp.trigger("onManageFactionRanksLoaded");
    $("table#rank-table").append("<tr><td>neues</td><td>element</td></tr>");
});

function loadData(rankData) {
    var obj = JSON.parse(rankData);
    obj.forEach(function (rank) {
        $("table#rank-table").append(rank);
    });
}