JavaScript实现网页背景自动变色功能

<!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=gb2312">
<title>背景自动变色</title>
</head>
<body>
背景自动变色
<script language="javascript">
var Arraycolor=new Array("#00FF66","#FFFF99","#99CCFF","#FFCCFF","#FFCC99","#00FFFF","#FFFF00","#FFCC00","#FF00FF");
var n=0;
function turncolors(){
  n++;
  if (n==(Arraycolor.length-1)) n=0;
  document.bgColor = Arraycolor[n];
  setTimeout("turncolors()",1000);
}
turncolors();
</script>
</body>
</html>