$(document).ready(function() {
  var randomImages = ['bg01','bg05','bg06','bg11'];
  var rndNum = Math.floor(Math.random() * randomImages.length);
/*  $('body.tableLedger').css({
                        'backgroundImage': 'url(http://www.viestevacanze.it/wp-content/themes/villapini01/images/backgrounds/" + randomImages[rndNum] + ".jpg)',
                        'backgroundRepeat': 'no-repeat',
                        'backgroundPosition': 'top center'
						
						
                });*/

  
 $("body.tableLedger").css({ background: "url(http://www.viestevacanze.it/wp-content/themes/villapini01/images/backgrounds/" + randomImages[rndNum] + ".jpg) top center no-repeat fixed" });
});