WorkerScript.onMessage = function(msg) {

    msg.model.clear()
    var cmdSets = JSON.parse(msg.data)
    for(var i = 0; i < cmdSets.length; ++i)
    {
        var item = JSON.parse(cmdSets[i].extendData)
        var obj = {}
        obj.id = item.id
        obj.asd = item.asd
        obj.rsd = item.rsd
        obj.speed = item.speed
        obj.direction = item.direction
        obj.runtime = item.runtime
        msg.model.append(obj);
    }

    msg.model.sync();   // updates the changes to the list
    WorkerScript.sendMessage({});
}