title: change background image in body
body: <p>How do i change the background image in CSS  at run time? I have the following background image in body and can the image be changed at run time? </p>
  
  <pre><code>body {
  height: 100%;
  background: #fff8db url(../images/backgrounds/header-top.jpg) no-repeat center top; 
  /*background-color: #fff8db;*/
  /*background-size: 1650px 900px;*/
  font-family: Arial, Verdana, Helvetica, sans-serif; 
  font-size:12px; 
  font-weight:normal; 
  color:#404040;
  line-height:20px; }
  </code></pre>