カーソルに綺麗な輪

■　カーソルに綺麗な輪がついてくるよ　■
ソースは、<head>　～　</head>　の間に記述してね。
■　一　言　■
海外のサイト「Kurt's Free DHTML JavaScript」で配布されてます。結構おもしよいよ♪
■　ソース　■
<script language="JavaScript"> <!-- Script by kurt.grigg@virgin.net NS4=(document.layers); IE4=(document.all); Clrs=new Array('ff0000','00ff00','ffffff','ff00ff','ffa500','ffff00','00ff00','ffffff','ff00ff') yBase=0; xBase=0; step=3; currStep=0; Ypos=0; Xpos=0; if (NS4){ for (i=0; i < 14; i++) document.write('<LAYER NAME="n'+i+'" LEFT=0 TOP=0 CLIP="0,0,'+i/4+','+i/4+'"></LAYER>'); window.captureEvents(Event.MOUSEMOVE); function nMouse(evnt){ Ypos = evnt.pageY-window.pageYOffset; Xpos = evnt.pageX; } window.onMouseMove=nMouse; } if (IE4){ document.write('<div id="e" style="position:absolute;top:0;left:0"><div style="position:relative">'); for (i=0; i < 14; i++) {document.write('<div id="me" style="position:absolute;top:0;left:0;width:'+i/4+';height:'+i/4+';font-size:'+i/4+'"></div>')} document.write('</div></div>'); function iMouse(){ Ypos=event.y; Xpos=event.x; } document.onmousemove = iMouse; } function Comet(){ S=(NS4)?window.pageYOffset:0; if (IE4) e.style.top=document.body.scrollTop; var yBase=(document.layers)?window.innerHeight/4:window.document.body.clientHeight/4; var xBase=(document.layers)?window.innerWidth/4:window.document.body.clientWidth/4; for (i=0; i < 14; i++){ var randCol = Clrs[Math.floor(Math.random()Clrs.length)]; var layer=(NS4)?document.layers['n'+i]:me[i].style; layer.top =Ypos + yBaseMath.cos((currStep+i4)/12)Math.cos(0.7+currStep/200)+S; layer.left=Xpos + xBaseMath.sin((currStep+i3)/10)*Math.sin(8.2+currStep/400); if (NS4) layer.bgColor=randCol; if (IE4)layer.background=randCol; } currStep+=step; setTimeout("Comet()",10); } window.onload=Comet; // --> </script>