prototype 1.5アプリケーション--簡単なフォーム提出検証

   
   
   
   

    
    
    
    

      JAVASCRIPT :: 
    
    
    
    
    
 
     
function aaa(){ 
       if($F('name')==""){ 
              new Element.update("div1","<div>      </div>"); 
              new Field.focus("name"); 
              return false; 
       }else new Element.update("div1",""); 
       if($F('pass')==""){ 
              new Element.update("div2","<div>      </div>"); 
              new Field.focus("pass"); 
              return false; 
       }else new Element.update("div2",""); 
       new Form.disable('mf'); 
}


    
    
    
    

      HTML :: 
    

    
    
    
     
     
<script language="javascript" src="prototype.js"></script> 
  
<form id="mf"> 
<input type="text" id="name"><div id="div1"></div> 
<input id="pass" type="password"><div id="div2"></div> 
<input type="button" onclick="javascript:aaa();" value="  "> 
<input type="button" onclick="javascript:new Form.reset('mf');" value="  "> 
</form