Check Field For Email Domain

[ChrisCarlson]

I have a text field where user enters an email address. I need to require that if a value is entered the email domain is a certain domain. Sometimes this field is empty so I need to require domain only if a value has been entered. Can this be achieved in javascript?

[Jan]

Hello Carl,

 

If I understand you correctly, you can add a Header&Footer element, select the Footer element, click the Source button and enter the following code:

<SCRIPT LANGUAGE="JavaScript">

function check_Domain()
{
  var correct_domain = "com";
  var field_name = "text255";
  field_name = "InsertRecord" + field_name;
  var text_email = document.getElementById(field_name).value;
  if (text_email.length>0)
  {
    var last_point = text_email.lastIndexOf(".");
    if (last_point > 3)
    {
      var text_domain = text_email.slice(last_point+1);
      if (text_domain.toLowerCase()!=correct_domain.toLowerCase())
       {
        alert("incorrect domain!");
        return false;
       }
     }
    else 
    {
      alert("Email address is incorrect!");
      return false;
     }
  }
}

document.getElementById("caspioform").onsubmit=check_Domain;
</SCRIPT>

Please enter your values in lines

 

var correct_domain = "com";
var field_name = "text255";

 

I hope, it helps.

[ChrisCarlson]

Jan,

 

I was able to modify the script to check full email domain not just the ending (.com, .net, etc). In this instance I want to make sure users only type an internal company email address and not external (yahoo, hotmail, etc).  I have checked and this script is working correctly. Thanks for your help!

 

 

<SCRIPT LANGUAGE="JavaScript">

 

function check_Domain()

{

  var correct_domain = "companyname.com";

  var field_name = "UserEmailAddress";

  field_name = "InsertRecord" + field_name;

  var text_email = document.getElementById(field_name).value;

  if (text_email.length>0)

  {

    var last_point = text_email.lastIndexOf("@");

    if (last_point > 3)

    {

      var text_domain = text_email.slice(last_point+1);

      if (text_domain.toLowerCase()!=correct_domain.toLowerCase())

       {

        alert("You must enter an email address ending with companyname.com.");

        return false;

       }

     }

    else 

    {

      alert("You must enter an email address ending with companyname.com.");

      return false;

     }

  }

}

 

document.getElementById("caspioform").onsubmit=check_Domain;

</SCRIPT>