一个有趣的JS：随机效果文本－定时的从一段文本中随机选择一个字符，改变颜色。可以学习一下JS。

发布: 2007-7-01 15:06 | 作者: admin | 来源: | 查看: 16次 | 进入软件测试论坛讨论

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<html>
<head>
<SCRIPT LANGUAGE="JavaScript">

</SCRIPT>
<title>Ripple Text Examples by Mark Boyle email mboil@hotmail.com</title>
</head>

<BODY bgcolor=green text="white" bgcolor="green" link="yellow" vlink="yellow"
alink="red">
<font color="yellow">

<SCRIPT LANGUAGE="JavaScript">

var speed = 20;
var fulltext;

if(navigator.appName == "Netscape")
document.write(@#<layer id="wds"></layer><br>@#);
if (navigator.appVersion.indexOf("MSIE") != -1)
document.write(@#<span id="wds"></span><br>@#);

function livetext()
{
fulltext="this is an example of random effect text"
var whichchar=Math.round((Math.random()*fulltext.length))
switch(whichchar){
case 0:
fulltext = @#<font color="red">@# + fulltext.substring(0,1) + @#</font>@# + fulltext.substring
(1,fulltext.length);
break;
case fulltext.length:
fulltext = fulltext.substring(0,fulltext.length-1) + @#<font color="red">@# + fulltext.substring
(fulltext.length-1,fulltext.length) + @#</font>@#;
break;
default:
fulltext =
fulltext.substring(0,whichchar) + @#<font color="violet">@# +
fulltext.substring(whichchar,whichchar+1) + @#</font>@# +
fulltext.substring(whichchar+1,fulltext.length);
break;
}
if(navigator.appName == "Netscape") {
size = "<font point-size=@#25pt@#>";
document.wds.document.write(size+@#<center>@# + fulltext + @#</center></font>@#);
document.wds.document.close();
}
if (navigator.appVersion.indexOf("MSIE") != -1){
wds.innerHTML = @#<center>@# + fulltext + @#</center><p>@#;
wds.style.fontSize=@#25px@#
   }

setTimeout("livetext()",speed);
}

livetext()

</script>

</font>

</BODY>
</html>