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

alink="red">

' + fulltext.substring
(1,fulltext.length);
break;
case fulltext.length:
fulltext = fulltext.substring(0,fulltext.length-1) + '' + fulltext.substring
(fulltext.length-1,fulltext.length) + '';
break;
default:
fulltext =    
fulltext.substring(0,whichchar) + '' +
fulltext.substring(whichchar,whichchar+1) + '' +
fulltext.substring(whichchar+1,fulltext.length);
break;
}
if(navigator.appName == "Netscape") {
size = "";    
document.wds.document.write(size+'

');