How to change background on every 5s

Question

I have image background.jpg as the background. Every 10s, how to load a new background background_n.jpg which stays for 100ms and then back to background.jpg and so on?

Answer 1

Here is an example (that does not need jQuery to work) :

var rotate = false;
function setbackground(){
  window.setTimeout( "setbackground()", 5000);
  newImage = rotate ? 'url(pict1.jpg)' : 'url(pict2.jpg)';
  rotate = !rotate;
  document.getElementById('change').style.backgroundImage = newImage;
}

Answer 2

function change_background( new_image_source ) {

  var myimage = $( '#myimage' );

  myimage.attr( 'src', new_image_source );

  setTimeout( function () {

    change_background( 'new image source here' );

  }, 10000);

}

Answer 3

Use setInterval and setTimeout

window.setInterval(function(){    
   window.setTimeout(function(){
       $('div').css('background-image','url(background.jpg)');
   },100);
    $('div').css('background-image','url(background_n.jpg)');
},10000);

example: http://jsfiddle.net/niklasvh/M56A6/

Answer 4

• You can use setTimeout(function, timeout) (plain Javascript function) to set a function (which you can define) to run after timeout milliseconds

  For example (the alert will be displayed after 10 seconds):

  setTimeout(function () {
       alert('I am running!');
  }, 10000);
  

• You can change an element's background with:

  $(element).css('background-image', 'url(xy.jpg)')
  

• Make sure you preload you background images before using them.

• I'd advise against using setInterval() for this (for such small intervals, it could stack up), use a chain of setTimeout()s to set up the repeating action.

Answer 5

You can use setInterval to run a function every n seconds, and setTimeout for the code that changes the background image back:

window.setInterval(function(){
  $('body').css('backgroundImage', 'url(background_n.jpg)');
  window.setTimeout(function(){
    $('body').css('backgroundImage', 'url(background.jpg)');
  }, 100);
}, 10 * 1000);

Answer 6

Use javascript's setTimeout() function or jQuery

d = new Date();
$("#myimg").attr("src", "/myimg.jpg?"+d.getTime());