window.addEvent("domready",function() {
	var pages_div = $('pages');
	var item_width = 620;
	var item_height = 300;
	var animation = new Fx.Tween(pages_div, {duration: 800});
	
	$('newsLink').addEvent("click",function(a){
												a.stop();
												var newposition = 0 * item_width;
												animation.start('left',newposition);
											});
	$('musicLink').addEvent("click",function(a){
											 	a.stop();
												var newposition = -1 * item_width;
												animation.start('left',newposition);
											});
	$('photosLink').addEvent("click",function(a){
											  	a.stop();
												var newposition = -2 * item_width;
												animation.start('left',newposition);
											});
								});