function formValidate() {
   
 
   if (document.form1.FirstName.value == "") {
    alert("Please enter your first name.");
    document.form1.FirstName.focus();
    return false;
  }
   if (document.form1.LastName.value == "") {
    alert("Please enter your last name.");
    document.form1.LastName.focus();
    return false;
  }
   if (document.form1.IDNumber.value == "" || document.form1.IDNumber.value == "000-") {
    alert("Please enter your ID Number.");
    document.form1.IDNumber.focus();
    return false;
  }  
    if (document.form1.Email.value == "") {
    alert("Please enter your email address.");
    document.form1.Email.focus();
    return false;
  }

  return true;
}