Du kan f.eks. bruge css (og så SSI, ASP, PHP eller hvad du ellers har lyst til, eller lade være ...).
Nedenstående er noget jeg lavede 20 dec. 2008, ved ikke om det virker helt optimalt i de nyere browsere (testet p.t. i IE8 og FF3)
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "
http://www.w3.org/TR/html4/loose.dtd"><html><head><meta http-equiv="content-type" content="text/html; charset=iso-8859-1"><title>Ingen titel</title>
<style type="text/css">
html,body{margin:0px;padding:0px;height:100%;overflow:hidden;}
#bodyen{
position:absolute;
height:100%;
width:100%;
overflow-y:scroll;
background:url('
http://www.eksperten.dk/images/dot_3.gif');
}
#main{
background:url('
http://www.eksperten.dk/images/dot_1.gif');
}
#spc{
clear:both;
height:100px;
}
#wm {
position:absolute;top:0px;left:0px;
width:100%;
height: 100px;
}
#wm2{
margin-right:17px;
height:100%;
position:relative;
}
#wm3{
background:url('
http://www.eksperten.dk/images/dot_2.gif') repeat;
position:absolute;
top:0px;left:0px;
width:100%;
height:100%;
z-index:2;
}
</style>
<!--[if IE]><style type="text/css">#wm{z-index:2;}</style><![endif]-->
</head><body>
<div id="wm"><div id="wm2"><div id="wm3">aaaaa</div></div></div>
<div id="bodyen">
<div id="spc"></div>
<div id="main">main...start<br>maiain...<br>main...<br>main...<br>main...<br>main...<br>main...<br>main...<br>main...<br>main...<br>main...<br>main...<br>main...<br>main...<br>main...<br>main...<br>main...<br>main...<br>main...<br>main...<br>main...<br>main...<br>main...<br>main...<br>main...<br>main...<br>main...<br>main...<br>main...<br>main...<br>main...<br>main...<br>main...<br>main...<br>main...slut</div>
</div>
</body></html>