Regular expression

I need to add validation for email to this file.  I went to the registration form an added the validation statements.  Did I do that that right?  yes or no?  If no, explain how this can be resolve.  I am sorry you  have to take on the teacher role today.  I just want to get this done.
SkywardAviationValidation-EE.zip
assaultkittyAsked:
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Manoj PatilSr. Software EngineerCommented:
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sammySeltzerCommented:
Well, assuming that your validator is correct, it is doing one thing - checking that email is not blank.

You ought to be checking that proper format such as period (.), @ sign, etc are strictly followed.

So, this simple js will accomplish both.

<script language="javascript" type="text/javascript">
    function validateEmail() {
        if (document.getElementById('email').value == "") {
            alert("Email id can not be blank");
            document.getElementById('email').focus();
            return false;
        }
        var emailPat = /^\w[\w\-\'\.]+\@(\w[\w\-\']*\.)+[a-z]{2,6}$/;
        var emailid = document.getElementById('email').value;
        var matchArray = emailid.match(emailPat);
        if (matchArray == null) {
            alert("Your email address seems incorrect. Please try again.");
            document.getElementById('email').focus();
            return false;
        }
        return true;
      }
  </script>

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Then you invoke the js on your submit button as:

 
 <asp:Button id="Registerform" runat = "server" Text="Register" OnClientClick="return validateEmail();" CssClass="noprint"/>

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assaultkittyAuthor Commented:
After the headache of trying to transcribe the programs before doing the project, I was able to complete the project with help from experts and their suggestion as they forward great websites that I used to complete the project.  thanks.
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