$(document).ready(function(){
//Full Caption Sliding (Hidden to Visible)
$('.showInfo').hover(function(){
$(".myDescription", this).stop().animate({top:'130px'},{queue:false,duration:160});
 }, function() {
       $(".myDescription", this).stop().animate({top:'500px'},{queue:false,duration:160});
       });
	   setInterval(cambiaBack, 25000);
    });
		
function cambiaBack () {
  var imgs = new Array("platanitoimg/platanito_back25.jpg","platanitoimg/platanito_back4.jpg","platanitoimg/platanito_back3b.jpg");				
  numback = (imgs.length)-1;
  aleat = Math.round(Math.random()*numback);
  $("#wrapper").css({ background: '#ECC544 url('+imgs[aleat]+') no-repeat scroll center top', });
}