i love opensource: validasi form dengan javascript

<html>
<head>
<script type="text/javascript">
 function validate_required(field,alerttxt){
  with(field){
   if(value==null||value==""){
    alert(alerttxt);return false;
   }else{
    return true
   }
  }
 }

function validate_form(thisform){
 with(thisform){
  if (validate_required(email,"Email must be filled out!")==false{
   email.focus();return false;
  }
 }
}  
</script>  </head>

<body>
<form action="submitpage.htm"  onsubmit="return
 validate_form(this)"
 method="post">
 Email:<input type="text"
 name="email" size="30"> <input type="submit" value="
 Submit">
 </form>
 </body>
 </html>

i love opensource

2008-12-18

validasi form dengan javascript

Tidak ada komentar: