Testing.prototype.loadLeft = function() {
    let dp = new tts.DeferredPromise();
    console.log("Left");
    dp.resolve();
    return dp;
};
Testing.prototype.loadRight = function() {
    let dp = new tts.DeferredPromise();
    dp.then(val=>{
        alert(this.name);
    });
    dp.resolve();
    return dp;
};