validation problem in jsp

The below code is my view.jsp file:
=======================================

<jsp:useBean id="mybean" class="mvc.Mybean" scope="request" />
<html>
  <head>
    <title>Simple MVC</title>
 
  </head>
  <body>
    <h2>Simple MVC</h2>  
    <form method="post" name="myform" action="myservlet" >
      <table>
        <tr>
          <td>
            First Name:
          </td>
          <td>
            <input type="text" 
                   name="form firstname" 
                   value="<jsp:getProperty name="mybean" property="firstname" />" />
          </td>
        </tr>
        <tr>
          <td>
            Last Name:
          </td>
          <td>
            <input type="text" 
                   name="form lastname" 
                   value="<jsp:getProperty name="mybean" property="lastname" />" />
          </td>
        </tr>
        <tr>
          <td>
            Email:
          </td>
          <td>
            <input type="text" 
                   name="form email" 
                   value="<jsp:getProperty name="mybean" property="email" />" />
          </td>
        </tr>
 
<tr>
          <td>
            <input type="submit" name="submit" value="submit" />
          </td>
          <td>
          </td>
        </tr>
 
  </table>
    </form>
    <pre>
      <jsp:getProperty name="mybean" property="message" />
    <pre>
  </body>
</html>

The below code is Mybean.java file:
=====================================

Now my question is how to make validation in the view.jsp for to validate first name is with uppercase and last name with lowercase and email validation.please give sample code.i tried as in form tag i put onSubmit="return validate()" and head section with function vallidate() but it is not working why? please help.and can we put action= "" and onsubmit="" both in form tag?

Where do you want to do the validation?

You've posted your bean's code which would hint that you want server side validation but your questions about onsubmit etc hint that you want to validate on the client (browser) with Javascript.

i want client side validation.just for understanding i posted the bean code also.

If you only want help with client side validation, the best place to ask is the HTML/Javascript forum.

I'll have this thread moved there for you.

hi all,
please continue this thread.

Can we put action= "" and onsubmit="" both in form tag?

Yes.

Why not post your validation code (and omit anything that is not relevant, like borrowed java code).

sorry for not posting validation code.now i am posting entire jsp with validation code.

<jsp:useBean id="mybean" class="mvc.Mybean" scope="request" />
<html>
  <head>
    <title>Simple MVC</title>
 <script language="javascript">
      function check()
  {
  alert("hi");
     if(document.myform.form email.value=="")
     {
 alert("please enter email");
 return false;
     }
 return true;
  }
 </script>
  </head>
  <body>
    <h2>Simple MVC</h2>  
    <form method="post" action="myservlet" name="myform" onSubmit="return check()">
      <table>
        <tr>
          <td>
            First Name:
          </td>
          <td>
            <input type="text" 
                   name="form firstname" 
                   value="<jsp:getProperty name="mybean" property="firstname" />" />
          </td>
        </tr>
        <tr>
          <td>
            Last Name:
          </td>
          <td>
            <input type="text" 
                   name="form lastname" 
                   value="<jsp:getProperty name="mybean" property="lastname" />" />
          </td>
        </tr>
        <tr>
          <td>
            Email:
          </td>
          <td>
            <input type="text" 
                   name="form email" 
                   value="<jsp:getProperty name="mybean" property="email" />" />
          </td>
        </tr>
 
<tr>
          <td>
            <input type="submit" name="submit" value="submit"/>
          </td>
          <td>
          </td>
        </tr>
 
  </table>
    </form>
    <pre>
      <jsp:getProperty name="mybean" property="message" />
    <pre>
  </body>
</html>

why the control is not going to check function in head section.browser showing that errors.if is any problem please give me suggetion.
[ January 12, 2006: Message edited by: babu amara ]

In the future, instead of saying "the browser is showing errors", show us what the errors are. Otherwise, we just have to guess.

And I'm guessing that your problem is:

the spaces in your element names.

I'd recommend against using spaces at all, but if you must, you'll need to use alternative syntax to access them:

[ January 13, 2006: Message edited by: Bear Bibeault ]

hi bear,
here there is no error is showing ,but only the problem is not showing any alert message if i am not enter the email.the information is directly send to server with out validating before.I put the email element 'form email' in single quotes.but no use.

i am trying to make alert message.

hi bear,
now it is working thank you.thank you so much.

cheers,
babu.
[ January 18, 2006: Message edited by: babu amara ]

Run your script in Firefox with the Javascript console displayed. I'm betting you'll see error messages.
[ January 18, 2006: Message edited by: Bear Bibeault ]

please tell me why it is not working in firefox while working in IE.please give reply.