window.addEvent('domready', function(){
	if($$('.headPost').length>1){
		var numPost=$$('.headPost').length;
		var slider=$('headPost').getElement('.slider');
		var count=0;
		slider.setStyle('width',numPost*900);
		var FxSlider= new Fx.Tween(slider,{'link':'cancel'});
		var boxSlider = new Element('div',{
			'class':'boxSlider',
			'styles':{
				'width':830,
				'height': 160,
				'overflow': 'hidden',
				'position': 'absolute',
				'left': 30,
				'top': 20
			}
		}).adopt(slider).inject($('headPost'));
		var avanti = new Element('a',{
			'class':'avanti',
			'href': '#',
			'styles':{
				'width':40,
				'height': 40,
				'overflow': 'hidden'
			},
			'events': {
				'click': function(e){
					new Event(e).stop();
					if(count<numPost-1){
						count++;
						FxSlider.start('margin-left',-830*count);
						if(count==numPost-1)this.setStyle('display','none');
						indietro.setStyle('display','block');
					}
				}
			}
		}).inject($('headPost'));
		var indietro = new Element('a',{
			'class':'indietro',
			'href': '#',
			'styles':{
				'width':40,
				'height': 40,
				'overflow': 'hidden'
			},
			'events': {
				'click': function(e){
					new Event(e).stop();
					if(count>0){
						count--;
						FxSlider.start('margin-left',-830*count);
						if(count==0)this.setStyle('display','none');
						avanti.setStyle('display','block');
					}
				}
			}
		}).inject($('headPost')).setStyle('display','none');
		/*$$('.headPost').each(function(item){
			//item.setStyle('float','left');
		});*/
	}
});