function validate()
{
   var contactForm = document.forms["contact"];
   var email = contactForm.Email.value;
   var phone= contactForm.Phone.value;
   var first= contactForm.FirstName.value;
   var last= contactForm.LastName.value;
   
   if (first == "" || last == "" || email == "" || phone == "" )
   {
      alert("Fields with an asterisk are mandatory. Thank you.")
      return false
   }
   else
   {
      return true
   }
}