cara membuat background berubah warna

Trims sudah berkunjung ke blog saya, klo tman2 ingin membuat background berubah warna,nih saya berbagi script htmlnya:

<script type='text/javascript'>

//CDATA[

/* JavaScript Kit (http://ageboy.blogspot.com/)*/

//Created Ageboy:

var bgcolorlist=new Array("#FFFFFF", "#B30000", "#EEFF00", "#11FF00", "#FF8A14", "#0008FF", "#4AFFF3", "#000")

document.body.style.background=bgcolorlist[Math.floor(Math.random()*bgcolorlist.length)]

//]]>

</script>

selamat mencoba............ :)