Change the body background image with fade effect in jquery

Question

Hey i want to fade in a new background image let´s say every 60 seconds. I´ve set the background image like this:

body {background-image: url(background.jpg)         


        

Answer 1

Each 12 seconds an image is changed in presentacion container; it can be body tag

HTML

JS

delay(11000) + setTimeout(1000) = 12 sec transition duration = 300 + 300 = 600 msec

var imgArray = ['image-1', 'image-2', 'image-3'], index = 0;

(function changeBG(){
  // mask element only for transition
  $('.mask').delay(11000).animate({opacity:1}, 300, function(){
    index = (index + 1) % img_array.length;
    // in presentacion element change bg images
    $('.presentacion').css("background-image", "url('images/bg-"+imgArray[index]+".jpg')");
  }).animate({opacity: 0}, 300);
  setTimeout(changeBG, 1000);
})();

CSS

.presentacion {
  background-attachment: fixed;
  background-color: rgba(0, 0, 0, 0.5);
  background-image: url("images/image-1.jpg");
  background-position: center center;
  background-repeat: no-repeat;
  -webkit-background-size: cover;
  background-size: cover;
  position: relative;
  width: 100%;
  z-index: 0;
  opacity: 1;
}
.mask {
  background-color: rgba(0,0,0,0);
  bottom: 0;
  left: 0;
  opacity: 0;
  position: absolute;
  right: 0;
  top: 0;
  height: 100%;
  z-index: 10;
}