function LiAnimation(id){
	// obtener datos de las funciones via ajax
	
	var animation = {
		init:function(){
			this.container		= document.getElementById(id);
			this.items 		= this.container.getElementsByTagName('li');
			this.animateIn();
		},
		setAllItemsOff:function(){
			for(a=0;a<this.items.length;a++){
				this.items[a].style.display = 'none';
			}
		},
		setAllItemsOn:function(){
			for(a=0;a<this.items.length;a++){
				this.items[a].style.display 	= 'block';
			}
		},
		animateIn:function(){
			for(a=0;a<this.items.length;a++){
				this.items[a].style.filter 		= 'Alpha(opacity=0)'; //if ie
				var animations = new Object();
				var element = this.items[a];
				animations[a] = new OpacityTween(element,Tween.strongEaseInOut, 0, 100, 1*a/3+2);
				animations[a].start();
			}	
		}
	
	}
	
	
	animation.init(id);
	return animation;
}