不错的文字特效，逐字变色效果

答案：<font color="#669900" style="font-weight:bolder;letter-spacing: 2px;"><script language="JavaScript"> 
text = "www.zhaoxi.net"; 
color1 = "green";  
color2 = "red"; 
speed = 200;  
i = 0; 
if (navigator.appName == "Netscape") { 
} 
else { 
document.write("<span id=a></span>"); 
} 
function changeCharColor() { 
if (navigator.appName == "Netscape") { 
document.a.document.write("<font color=" + color1 + ">"); 
for (var j = 0; j < text.length; j++) { 
if(j == i) { 
document.a.document.write("<font color=" + color2 + ">" + Text.charAt(i) + "</font>"); 
} 
else { 
document.a.document.write(text.charAt(j)); 
} 
} 
document.a.document.write('</font>'); 
document.a.document.close(); 
} 
if (navigator.appName == "Microsoft Internet Explorer") { 
str = "<font color=" + color1 + ">"; 
for (var j = 0; j < text.length; j++) { 
if( j == i) { 
str += "<font   color=" + color2 + ">" + text.charAt(i) + "</font>"; 
} 
else { 
str += text.charAt(j); 
} 
} 
str += "</font>"; 
a.innerHTML = str; 
} 
(i == text.length) ? i=0 : i++; 
} 
setInterval("changeCharColor()", speed); 
// End --> 
</script> 
</font>  
运行效果 
<font color="#669900" style="font-weight:bolder;letter-spacing: 2px;"><script language="JavaScript"> 
text = "这里输入你要的文字 www.zhaoxi.net"; 
color1 = "green";  
color2 = "red"; 
speed = 200;  
i = 0; 
if (navigator.appName == "Netscape") { 
} 
else { 
document.write("<span id=a></span>"); 
} 
function changeCharColor() { 
if (navigator.appName == "Netscape") { 
document.a.document.write("<font color=" + color1 + ">"); 
for (var j = 0; j < text.length; j++) { 
if(j == i) { 
document.a.document.write("<font color=" + color2 + ">" + Text.charAt(i) + "</font>"); 
} 
else { 
document.a.document.write(text.charAt(j)); 
} 
} 
document.a.document.write('</font>'); 
document.a.document.close(); 
} 
if (navigator.appName == "Microsoft Internet Explorer") { 
str = "<font color=" + color1 + ">"; 
for (var j = 0; j < text.length; j++) { 
if( j == i) { 
str += "<font   color=" + color2 + ">" + text.charAt(i) + "</font>"; 
} 
else { 
str += text.charAt(j); 
} 
} 
str += "</font>"; 
a.innerHTML = str; 
} 
(i == text.length) ? i=0 : i++; 
} 
setInterval("changeCharColor()", speed); 
// End --> 
</script> 
</font>  

  [Ctrl+A 全选 注:如需引入外部Js需刷新才能执行]

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