$(document).ready(function(){

  var currentPosition = 0;
  var slideWidth = 645;
  var slides = $('.slide');
  var numberOfSlides = slides.length;

  moverSlide = function(currentPosition){
      $('#slideInner').animate({'marginLeft' : slideWidth*(-currentPosition)}, { duration: "slow" });
  }
  $('#slidesContainer').css('overflow', 'hidden');

  slides
    .wrapAll('<div id="slideInner"></div>')
	.css({
      'float' : 'left',
      'width' : slideWidth
  });

  $('#slideInner').css('width', slideWidth * numberOfSlides);


  $("[id*=itemAnios]").each(function(i, item){
      $("#itemAnios"+i).click(function(){
        moverSlide(i);
        $("[id*=itemAnios]").attr("class", "anioAnteriores");
        $("#itemAnios"+i).attr("class", "anioAnterioresSelected");
      });
  });
});