window.addEvent('domready', function(){ 
	var totIncrement		= 0;
  var increment			= 103; //212 o ile ma sie przesunac (calosc tj margin + padding + szerokosc)
  var maxRightIncrement	= increment*(-1); //-6 ile zostalo
		
	var fx = new Fx.Tween($('slider-list'), {duration: 1000, transition: 'back:in:out', wait: true});

    $('previous').addEvent('click', function() {
        if(totIncrement < 0) {
            totIncrement += increment;
						//fx.stop()
            fx.start('margin-left', totIncrement);
        }
    });

    $('next').addEvent('click', function() {
        if(totIncrement > maxRightIncrement) {
            totIncrement -= increment;
						//fx.stop()
            fx.start('margin-left', totIncrement);
        }
    });
});

/*window.addEvent('domready', function(){ 
	  var totIncrement		= 0;
	  var increment			= 103; //212 o ile ma sie przesunac (calosc tj margin + padding + szerokosc)
	  var maxRightIncrement	= increment*(-4); //-6 ile zostalo
	  var fx = new Fx.Style('slider-list', 'margin-left', {
				duration: 1000,
				transition: Fx.Transitions.Back.easeInOut,
				wait: true
	   });
	   
	   //-------------------------------------
	  // EVENTS for the button "previous"
	  $('previous').addEvents({ 
          'click' : function(event){ 
		  if(totIncrement<0){
					totIncrement = totIncrement+increment;
					fx.stop()
					fx.start(totIncrement);
				}
			}			  	  
      }); 
	 
       //-------------------------------------
	  // EVENTS for the button "next"
  	  $('next').addEvents({ 
          'click' : function(event){ 
			 if(totIncrement>maxRightIncrement){
				 totIncrement = totIncrement-increment;
		    	fx.stop()
				fx.start(totIncrement);
			}
          }		  		  
      })	 
});*/