무지개 빛으로 반짝 거리는 스크롤바

<style type="text/css">
<!--
	body{
	SCROLLBAR-FACE-COLOR: White;
	SCROLLBAR-HIGHLIGHT-COLOR: WHITE;
	SCROLLBAR-SHADOW-COLOR: WHITE;
	SCROLLBAR-3DLIGHT-COLOR: BLACK;
	SCROLLBAR-ARROW-COLOR: BLACK;
	SCROLLBAR-TRACK-COLOR: #cccccc;
	SCROLLBAR-DARKSHADOW-COLOR: WHITE;
	}
//-->
</style>

스크롤바가 무지개 빛으로 !

<script language="JavaScript">
<!--
	//바뀔 색상 지정
	var colorCode = new Array("#ff0000","FF6820","ffff00","3DD013","3D00FF","3D0398","8532AB");
	var Length = colorCode.length;
	var a = 0;

	function changeColor(){
		document.body.style.scrollbarFaceColor = colorCode[a];
		document.body.style.scrollbarTrackColor = colorCode[a];
		a++;
		if(a > Length)a = 0;
	}

	setInterval("changeColor()", 100);
//-->
</script>