JS综合案例：创建根据不同来宾显示不同内容的欢迎栏

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<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>根据不同的用户显示欢迎登录信息</title>
</head>
<body bgcolor="#fef4d2" onload="window.setTimeout('scrollmsg(20)')">
<br><br>
<center>
<h2>欢迎登录</h2>
<hr>
<br><br>
<script type="text/javascript">
   var yourname = prompt("请输入您的名字：", "朋友")
   function scrollmsg(index){    
     var m1  =  ("欢迎您，"+ yourname+"，希望在此能够有所收获！");     
     var m2  = " 请多提宝贵意见！！";      
     var msg=m1+m2;     
     var out = "";      
     var c = 0;     
     if(index > 0 ){
        for (c=0 ; c < index ; c++) { 
      out+=" "; 
    }       
        out+=msg;         
        index--;            
        var cmd="scrollmsg(" + index + ")";             
        document.display.box.value=out;     
        window.setTimeout(cmd,150); } 
     else if (index <= 0) {               
           if (-index < msg.length){            
               out+=msg.substring(-index,msg.length);            
               index--;                    
               var cmd="scrollmsg(" + index + ")";              
               document.display.box.value=out;         
               window.setTimeout(cmd,150); 
       }             
           else {             
             document.display.box.value=" ";                
            window.setTimeout("scrollmsg(20)",150); } 
     }
  }
</script>
  <form name="display" >  
  <input type="text" name="box" size="30" >   
  </form>
</body>
</html>
取自“http://www.openbrains.net/mediawiki/index.php?title=JS综合案例：创建根据不同来宾显示不同内容的欢迎栏&oldid=16252”