Sidebar.Animation = function ( signals ) {

	var options = {};
	var possibleAnimations = {};

	var container = new UI.Panel();
	container.setPadding( '10px' );
	container.setBorderTop( '1px solid #ccc' );

	container.add( new UI.Text( 'Animation' ).setColor( '#666' ) );
	container.add( new UI.Break(), new UI.Break() );

	var AnimationsRow = new UI.Panel();
	var Animations = new UI.Select().setOptions( options ).setWidth( '130px' ).setColor( '#444' ).setFontSize( '12px' );
	AnimationsRow.add( new UI.Text( 'animations' ).setWidth( '90px' ).setColor( '#666' ) );
	AnimationsRow.add( Animations );
	container.add( AnimationsRow );
	container.add( new UI.Break() );
		
	var PlayRow = new UI.Panel();
	var playButton = new UI.Button().setLabel("Play").onClick(play);
	PlayRow.add( playButton );
	container.add( PlayRow );
	container.add( new UI.Break() );
	
	function play(){
		
		var value = Animations.getValue();
		if (possibleAnimations[value]){
			var anims = possibleAnimations[value]
			for ( var i = 0;i < anims.length;i++){
				anims[i].play();
			}
			signals.playAnimations.dispatch( anims );
		};
	}
	
	signals.objectAdded.add( function ( object ) {

		if (object instanceof THREE.Mesh){

			if (object.geometry && object.geometry.animation){

				var name = object.geometry.animation.name;
				options[name] = name
				Animations.setOptions(options);
				
				THREE.AnimationHandler.add(object.geometry.animation);
				var animation = new THREE.Animation(object, 
     				name, 
     				THREE.AnimationHandler.CATMULLROM)
				
				if (possibleAnimations[name]){
					possibleAnimations[name].push(animation);
				} else {
					possibleAnimations[name] = [animation];
				}
				
			}
			
		}

	} );
	
	return container;

}