Hi Veloki,
You can drag and drop custom "email Adress" object from Custom Object Library. It includes the script for email validation in the validate event of email area.
// Validate the email address.
var r = new RegExp("^[a-z0-9_\\-\\.]+\\@[a-z0-9_\\-\\.]+\\.[a-z]{2,3}$"); // Create a new Regular Expression Object.
// Set the regular expression to look for an email address in general form.
var result = r.test(this.rawValue); // Test the rawValue of the current object to see
// if it fits the general form of an email address.
if (result == true) // If it fits the general form,
true; // all is well.
else // Otherwise,
false; // fail the validation.
Asiye