document.writeln("<!--");
document.writeln("");
document.writeln("标题走马灯效果");
document.writeln("");
document.writeln("-->");
document.writeln("");
document.writeln("");
document.writeln("<div class=\"marquee\" style=\"width:300px;\">");
document.writeln("  <div>");
document.writeln("    <span>中国你好</span>");
document.writeln("     <span>为人民服务</span>");
document.writeln("     <span>就这样</span>");

document.writeln("     <span>我们来了</span>");

document.writeln("     <span>带领大家分享快乐</span>");

document.writeln("     ");
document.writeln("     ");
document.writeln("  </div>");
document.writeln("</div>");

麻烦帮看看如何修改谢谢