/* class begins */
		var ScrollSide = new Class({
			
			//implements
			Implements: [Options,Events],
			
			//options
			options: {
				reset: true,
				movement: 75,
				onScrollUp: $empty,
				onScrollDown: $empty
			},
			
			//initialization
			initialize: function(container,options) {
				//set options
				this.setOptions(options);
				this.container = $(container);
				if(this.options.reset) { this.container.scrollTo(0,0); }
				this.containerWidth = this.container.getScrollSize().x;
				this.position = this.container.getScroll().x;
				//add the listener
				this.addListeners();
			},
			
			//listen for scrolling
			addListeners: function() {
				/* scroll reset */
				var scrollContainer = (this.container == $(document.body) ? window : this.container);
				scrollContainer.addEvent('scroll',function() {
					this.position = scrollContainer.getScroll().x;
				}.bind(this));
				/* mousewheeling */
				this.container.addEvent('mousewheel',function(event) {
					event.stop();
					//alert('mousewheel in class: ' + event.wheel);
					//scroll down/right
					if(event.wheel < 0) {
						this.fireEvent('onScrollUp',[event]);
						var pos = this.position + this.options.movement;
						this.position = (pos <= this.containerWidth ? pos : this.containerWidth);
						this.container.scrollTo(this.position,0);
					}
					//scroll up/left
					else{
						this.fireEvent('onScrollDown',[event]);
						var pos = this.position - this.options.movement;
						this.position = (pos > 0 ? pos : 0);
						this.container.scrollTo(this.position,0);
					}
				}.bind(this));
			}
		});
		
		/* usage */
		window.addEvent('domready',function() {
			//var ss = new ScrollSide(window);
			var ss = new ScrollSide(document.body);
			//var ss = new ScrollSide($$('html')[0]);
			
			//$$('html')[0] works good for FF and IE
			
		});