Background Changer For Blogger

A Live Demo is implemented in this post page.
Step 1 : Navigating
Go to Blogger
Template
Backup your Template
Press Edit HTML
Step 2 : Adding the Code
Search for </head>
Copy the following code and paste it before </head>
<script type='text/javascript'>
var banner= new Array()
banner[0]='IMAGE-URL'
banner[1]='IMAGE-URL'
banner[2]='IMAGE-URL'
banner[3]='IMAGE-URL'
banner[4]='IMAGE-URL'
var random=Math.floor(5*Math.random());
document.write("<style>");
document.write("body {");
document.write(' background-image:url("' + banner[random] + '");');
document.write(' background-attachment:fixed;' );
document.write(' background-repeat:no-repeat;' );
document.write(' background-size:100%;' );
document.write(" }");
document.write("</style>");
</script>
Step 3 : Saving
Save your Template
Note :
Replace IMAGE-URL with the URL of your background image.
You may add more banners by addding banner[5]='IMAGE-URL' to the code, just don't forget to change the Math.floor value when you're adding and removing banners.
Is this plugin useful? Please do leave your comments below!