in hive/scaladocs/lib/scheduler.js [19:24]
this.addLabel = function(name, priority) {
var idx = 0;
while (idx < scheduler.queues.length && scheduler.labels[idx].priority <= priority) { idx = idx + 1; }
scheduler.labels.splice(idx, 0, new scheduler.label(name, priority));
scheduler.queues.splice(idx, 0, new Array(0));
}