This plugin shows a random background image for every page refresh, visitor session or a timed slideshow interval. It supports fixed full screen background, full width scrolling background, or classic non-scaled background, background images using the NextGen Gallery plugin, fade in background dynamically using jQuery.
1. Download Better Backgrounds WordPress plugin. Download link.
2. Unzip and upload it to your WordPress wp-content/plugins directory.
3. Login to wp-admin. In your admin dashboard click plugins and activate the Better Backgrounds WordPress plugin.
4. Then go to Appearance menu and select Better Backgrounds
5. Type your image folder path,select background layout,Random Image Change Interval and display options and click Save settings.