紧随鼠标的流动彩色字串

<html>
<head>
<title>网页特效|Linkweb.cn/Js|---紧随鼠标的流动彩色字串</title>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<style>.spanstyle {
COLOR: #0066ff; FONT-FAMILY: 隶书; FONT-SIZE: 14pt; FONT-WEIGHT: normal; POSITION: absolute; TOP: -50px; VISIBILITY: visible
}
</style>
</head>
<body bgcolor="#000000" onload="javascript:pageonload()">
<script language="javascript">
var message="欢 迎 进 入 我 的 网 站 !";
var x,y;
var step=12;
var flag=0;
message=message.split("");
var xpos=new Array();
for (i=0;i<=message.length-1;i++) {
xpos[i]=-50;
}
var ypos=new Array();
for (i=0;i<=message.length-1;i++) {
ypos[i]=-50;
}
function handlerMM(e) {
x = (document.layers) ? e.pageX : document.body.scrollLeft+event.clientX+10;
y = (document.layers) ? e.pageY : document.body.scrollTop+event.clientY;
flag=1;
}
function makesnake() {
if (flag==1 && document.all) {
for (i=message.length-1; i>=1; i--) {
xpos[i]=xpos[i-1]+step;
ypos[i]=ypos[i-1];
}
xpos[0]=x+step;
ypos[0]=y;
for (i=0; i<=message.length-1; i++) {
var thisspan = eval("span"+(i)+".style");
thisspan.posLeft=xpos[i];
thisspan.posTop=ypos[i];
thisspan.color=Math.random() * 255 * 255 * 255 + Math.random() * 255 * 255 + Math.random() * 255;
}
}
else if (flag==1 && document.layers) {
for (i=message.length-1; i>=1; i--) {
xpos[i]=xpos[i-1]+step;
ypos[i]=ypos[i-1];
}
xpos[0]=x+step;
ypos[0]=y;
for (i=0; i<message.length-1; i++) {
var thisspan = eval("document.span"+i);
thisspan.left=xpos[i];
thisspan.top=ypos[i];
thisspan.color=Math.random() * 255 * 255 * 255 + Math.random() * 255 * 255 + Math.random() * 255;
}
}
}
</script>
<script language="javascript">
for (i=0;i<=message.length-1;i++) {
document.write("<span id=''''''''''''''''span"+i+"'''''''''''''''' class=''''''''''''''''spanstyle''''''''''''''''>");
document.write(message[i]);
document.write("</span>");
}
if (document.layers) {
document.captureEvents(Event.MOUSEMOVE);
}
document.onmousemove = handlerMM;
</script>
<script
language="javascript">
function pageonload() {
makesnake();
window.setTimeout("pageonload();", 2);
}
</script>
</body>
</html>