js困或！

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>Untitled Document</title>
<script language="JavaScript">
function assignArray(text,delay)
{
this.text=text
this.delay=delay
}
function createArray()
{
//修改下面的渐变颜色代码
fadecolor=new Array("#000000","#333333","#666666","#999999","#CCCCCC","#FFFFFF")//显示的颜色
msg=new Array()
msg[0]=new assignArray("中国共产党万岁",1000)//修改显示的文字
msg[1]=new assignArray("为人民服务",1000)//修改显示的文字
msg[2]=new assignArray("感恩的心",1000)//修改显示的文字
msg[3]=new assignArray("难忘今宵",1000)//修改显示的文字
setTimeout("typeIt()", 1000)
}
var msgNo=0
var character=1
var colorNo=0
var fixColor=1
var colorCheck=0
function typeIt()
{
var insertHTML=""
if(msgNo <= msg.length-1)
{
if(character <= msg[msgNo].text.length || colorCheck < msg[msgNo].text.length)
{
colorCheck=0
for(var charCheck=0; charCheck<character; charCheck++,colorNo--,fixColor--)
{
if(fixColor>5)colorNo=5
if(colorNo==5)colorCheck+=1
insertHTML += '<SPAN style="font-family:Arial Black; font-size:50pt; color:'+fadecolor[colorNo]+'">' + msg [msgNo].text.substring(charCheck, charCheck+1) + '</SPAN>'
}
document.getElementById("typeWriter").innerHTML=insertHTML
setTimeout("typeIt()", 50)
character++
colorNo=character-1
fixColor=character
}
else
{
character=1
colorNo=character-1
fixColor=character
setTimeout("typeIt()", msg[msgNo].delay)
msgNo++
}
}
}
</script>
</head>
<body bgcolor="#000000" onLoad="createArray()" text="#ffffff">
<div ID="typeWriter" style="position:absolute; left:200; top:10; width:700"></div>
</body>
</html>