Cambio color fondo – OVER

				
					jQuery(function($){
    $(window).scroll(function() {

 
  var $window = $(window),
      $body = $('body'),
      $panel = $('.panel');    // change this with your own class
    
  
  var scroll = $window.scrollTop() + ($window.height() / 2);

  $panel.each(function () {
    var $this = $(this);

    
    if ($this.position().top <= scroll && $this.position().top + $this.height() > scroll) {

     
      $body.removeClass(function (index, css) {
        return (css.match (/(^|\s)color-\S+/g) || []).join(' ');
      });

      $body.removeClass(function (index, css) {
        return (css.match (/(^|\s)color-\S+/g) || []).join(' ');
      });
     
      $body.addClass('color-' + $(this).data('color'));
    
    }
  });

}).scroll();
});