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Thread: Random Background Image each time a site is loaded.

  1. #1
    Join Date
    Dec 2008
    Posts
    37

    Arrow Random Background Image each time a site is loaded.

    Hi every one!

    A client has asked me to do a site that loads a random background image each time on load, Now ultimately after I get the random image loading each time the site comes up I would like to get that image to dynamically be full size in the back ground.

    I'm thinking that I'm going to get that taken care of before I move on to the full screen part, let me know your thoughts on that plan of action.

    Any way I'm having a bit of a hard time so far here is my development site, as you can see there are no background images showing up at this point, let alone random:

    http://www.workspace.johncliffordtay...nd-written/web

    Now let me share the source material that I'm using to get to this point so far, I I'm using tread from StackOverFlow to help me with the JS and so on:

    http://www.stackoverflow.com/questio...nd-images-css3

    Like I said none of my background images are showing up and I'm a bit stumped at present on whats not working for me. Any additional assistance would be VERY appreciated!

    One love,

    John

  2. #2
    Join Date
    Dec 2011
    Location
    Centurion, South Africa
    Posts
    795
    Well, here is an isolated example of how it could be done:

    index.htm
    Code:
    <!DOCTYPE html>
    <html lang="en">
    	<head>
    		<meta charset="utf-8" />
    		<title>Hand Written</title>
    
    		<style type="text/css">
    
    			BODY {
    				background-size: cover;
    				background-repeat: no-repeat;
    			}
    
    		</style>
    
    		<script type="text/javascript">
    
    			window.onload = (function()
    			{
    				var numberOfBackGroundImages = 8;
    				return function()
    				{
    					document.getElementsByTagName('body')[0].style.backgroundImage = 'url(images/' + Math.ceil(Math.random() * numberOfBackGroundImages) + '.jpg)';
    				};
    			}());
    
    		</script>
    
    	</head>
    	<body>
    
    		CONTENT
    
    	</body>
    </html>
    You will need to place your image directory relative to the page requesting the images (unless you prepend / to the images path):

    images/[1-8].jpg
    Last edited by bionoid; 12-07-2013 at 02:27 AM.
    JavaScript: Learn | Validate | Compact | bionoid

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