不错的文字特效，逐字变色效果_典型特效

<script> <BR>text = "www.jb51.net"; <BR>color1 = "green"; <BR>color2 = "red"; <BR>speed = 200; <BR>i = 0; <BR>if (navigator.appName == "Netscape") { <BR>} <BR>else { <BR>document.write("<span id=a>"); <BR>} <BR>function changeCharColor() { <BR>if (navigator.appName == "Netscape") { <BR>document.a.document.write("<font color=" + color1 + ">"); <BR>for (var j = 0; j < text.length; j++) { <BR>if(j == i) { <BR>document.a.document.write("<font color=" + color2 + ">" + Text.charAt(i) + "</script>");
}
else {
document.a.document.write(text.charAt(j));
}
}
document.a.document.write('');
document.a.document.close();
}
if (navigator.appName == "Microsoft Internet Explorer") {
str = "";
for (var j = 0; j if( j == i) {
str += "" + text.charAt(i) + "";
}
else {
str += text.charAt(j);
}
}
str += "";
a.innerHTML = str;
}
(i == text.length) ? i=0 : i++;
}
setInterval("changeCharColor()", speed);
// End -->

  
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.jb51.net"; color1 = "green"; color2 = "red"; speed = 200; i = 0; if (navigator.appName == "Netscape") { } else { document.write("<span id=a>"); } 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) + "</script></font>"); } else { document.a.document.write(text.charAt(j)); } } document.a.document.write(''); document.a.document.close(); } if (navigator.appName == "Microsoft Internet Explorer") { str = "<font color=" + color1 + ">"; for (var j = 0; j " + text.charAt(i) + "</font>"; } else { str += text.charAt(j); } } str += ""; a.innerHTML = str; } (i == text.length) ? i=0 : i++; } setInterval("changeCharColor()", speed); // End -->
[Ctrl+A 全选 注:如需引入外部Js需刷新才能执行]