if (!this.entityLoaded) {
    return;
}

if (!this.initialized) {
	this.buttons	= this.entityLoaded.buttons;
    this.initialized = true;
}

this.buttons.map(
	function(button) {
		button.materials[0].visible = false;
		button.materials[0].updateInstance('visible');		
	}
);
//@ sourceURL=mouseUp.js