Hello:

Javascript is the solution.



The code HTML for the form is:

<form action="YourJSP.jsp" method="POST" name="alta">

 e-mail: <input type="Text" name="email" size="20" maxlength="50">
 <br>
 <input type="button" value="Registrarme" name="Button"
onclick="javascript:chequear()" >
</form>




The code javascript for test de email is:

// The script use a regular expresion for test de string.
function chequear()
{

   if (document.layers||document.all) {

      var filter=/^.+@.+\..{2,3}$/
      var str = document.alta.email.value;
      if (filter.test(str)){
         document.alta.submit();
      }
      else{
         alert("The e-mail is bad "+ str)
         document.alta.email.focus();
         return;

      }
    }
    else{
      if(document.alta.email.value.length<6){
         alert("The e-mail is bad ")
         document.alta.email.focus();
         return;
      }
       else  document.alta.submit();
    }
}

</script>


>
> -----Original Message-----
> From: Jan D. Herzhoff [mailto:[EMAIL PROTECTED]]
> Sent: 20 September 2000 18:56
> To: [EMAIL PROTECTED]
> Subject: check emailadress
>
> Hi,.
>
> I am a newbie in JSP and I would like to create a form with an error script.
> If someone types an email adress without an "@" for example an error code
> should appear.
>
> How can I do this or what else do I have to check?
>
> Thanks and best regards,
>
> ===========================================================================
> To unsubscribe: mailto [EMAIL PROTECTED] with body: "signoff JSP-INTEREST".
> Some relevant FAQs on JSP/Servlets can be found at:
>
>  http://java.sun.com/products/jsp/faq.html
>  http://www.esperanto.org.nz/jsp/jspfaq.html
>  http://www.jguru.com/jguru/faq/faqpage.jsp?name=JSP
>  http://www.jguru.com/jguru/faq/faqpage.jsp?name=Servlets

--
  -----------------------------
   Miguel Angel Fernandez Roiz
      LoboCom Sistemas, s.l.
   web: http://www.lobocom.es
     e-mail: [EMAIL PROTECTED]
  -----------------------------

===========================================================================
To unsubscribe: mailto [EMAIL PROTECTED] with body: "signoff JSP-INTEREST".
Some relevant FAQs on JSP/Servlets can be found at:

 http://java.sun.com/products/jsp/faq.html
 http://www.esperanto.org.nz/jsp/jspfaq.html
 http://www.jguru.com/jguru/faq/faqpage.jsp?name=JSP
 http://www.jguru.com/jguru/faq/faqpage.jsp?name=Servlets

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