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Background Changer
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| function BackgroundChanger (settings) { | |
| // Author: Sebastian Schmidt | |
| var settings = settings || {}; | |
| // Set sane default options | |
| this.nextImage = settings.firstImage || 1; // image to change to next | |
| this.interval = settings.interval || 5000; // time until next image is shown (ms) | |
| this.backgroundElement = settings.backgroundElement || document.getElementById('background-sideshow'); // element to change the background image on | |
| this.backgroundImages = settings.backgroundImages || [ // a list of image url's | |
| 'http://lorempixel.com/1280/720/abstract/', | |
| 'http://lorempixel.com/1280/720/animals/', | |
| 'http://lorempixel.com/1280/720/nature/', | |
| 'http://lorempixel.com/1280/720/nightlife/', | |
| 'http://lorempixel.com/1280/720/city/', | |
| ]; | |
| this.changeBackgroundImage = function() { | |
| if (self.nextImage > self.backgroundImages.length - 1) { | |
| self.nextImage = 0; | |
| } | |
| self.backgroundElement.style.backgroundImage = "url(" + self.backgroundImages[self.nextImage] + ")"; | |
| self.nextImage++; | |
| }; | |
| this.start = function() { | |
| return setInterval(this.changeBackgroundImage, this.interval); | |
| }; | |
| var self = this; // allow setInterval etc. to access this scope | |
| this.start(); // run | |
| } |
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <title>Background Changer</title> | |
| <link href="style.css" rel="stylesheet"> | |
| </head> | |
| <body> | |
| <div id="background-sideshow"></div> | |
| <script type="text/javascript"> | |
| // Create the Object and set options (everything is optional) | |
| var bc = new BackgroundChanger({ | |
| firstImage: 1, // image to change to next | |
| interval: 5000, // time until next image is shown (ms) | |
| backgroundElement: document.querySelector('#background-sideshow'), // element to change the background image on | |
| backgroundImages: [ // a list of image url's | |
| 'http://lorempixel.com/1280/720/abstract/', | |
| 'http://lorempixel.com/1280/720/animals/', | |
| 'http://lorempixel.com/1280/720/nature/', | |
| 'http://lorempixel.com/1280/720/nightlife/', | |
| 'http://lorempixel.com/1280/720/city/' | |
| ] | |
| }); | |
| </script> | |
| </body> | |
| </html> |
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| #background-sideshow { | |
| position: fixed; | |
| top: 0; | |
| left: 0; | |
| width: 100%; | |
| height: 100%; | |
| z-index: -1; | |
| background-position: center 0, center; | |
| background-repeat: no-repeat; | |
| background-size: cover; | |
| background-image: url('http://lorempixel.com/1280/720/abstract/'); | |
| /* adds a fade transition between images */ | |
| transition: background 0.7s linear; | |
| -webkit-transition: background 0.7s linear; | |
| } |
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