The parameter on the body tag that is used to identify a background image is, just like Background Colors, not always displayed in every browser. The Background Image will replace the background color if the image loads successfully. If not, the background color is the color that will be used as a background to your web page.
The following modification to the <body> tag identifies a background image to be loaded:
<body text="#00FFFF" bgcolor="#000000" link="#FFFF00" vlink="#FF0000" background="http://www.yourdomain.com/yourdirectory/background.gif">
In the example above I included the complete URL. This is not necessary for an image which you have saved yourself. You can include the Parameter as a relative link, so long as the image file resides in the same directory as the HTML document that is using the image. The following shows the same URL as a relative link.
<body text="#00FFFF" bgcolor="#000000" link="#FFFF00" vlink="#FF0000" background="./background.gif">