Automatically trains pickup players GLB2

gistfile1.txt

var request = new XMLHttpRequest();
var counter = 0;
var limit = 40; // Trains 40 times
var counterFunction = function() {
    request.abort();
    request.open('POST', '/game/player/' + glb2.player.playerId + '/pickup_join', true);
    request.onload = function() {
        if (request.status >= 200 && request.status < 400) {
            if (!!+request.responseText) ++counter;
            if (counter >= limit) window.clearInterval(interval)
        }
    };
    request.send();
}
var interval = setInterval(function() {
    return counterFunction();
}, 300000)