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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

时间:2012-12-24 21:59来源:未知 作者:admin 点击:
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!DOCTYPE HTML PUBLIC -//W3C//DTD HTML 4.0 Transitional//EN html head SCRIPT LANGUAGE=JavaScript !-- function open () {return true;} //-- /SCRIPT titleRipple Text Examples by Mark Boyle email mboil@hotmail.com/title /head BODY bgcolor=green t
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<html>
<head>
<SCRIPT LANGUAGE="JavaScript">
<!--
function open () {return true;}
//-->
</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>');

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