Code:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<title></title>
</head>
<body>
<img id="tst" src="http://www.vicsjavascripts.org.uk/StdImages/Blank.gif" alt="img">
<script type="text/javascript">
<!--
var Messages=['http://www.vicsjavascripts.org.uk/StdImages/1.gif','http://www.vicsjavascripts.org.uk/StdImages/2.gif','http://www.vicsjavascripts.org.uk/StdImages/3.gif','http://www.vicsjavascripts.org.uk/StdImages/4.gif','http://www.vicsjavascripts.org.uk/StdImages/5.gif','http://www.vicsjavascripts.org.uk/StdImages/6.gif','http://www.vicsjavascripts.org.uk/StdImages/7.gif'];
function Message(id,ary,hr){
var date=new Date(),obj=document.getElementById(id),hr=typeof(hr)=='number'&&hr>=0&&hr<=24?hr:24;
if (obj&&typeof(ary)=='object'&&ary.constructor==Array&&ary[0]){
obj.src=ary[date.getDay()+(date.getHours()>=hr?1:0)]||ary[0];
}
}
Message('tst',Messages,10);
//-->
</script>
</body>
</html>