function EmailGroupSelected_ClientValidate(sender, args) {

  //args.IsValid = false;
  //args.IsValid = varoneselected;

  var chkAssigners = $get("chkAssigners")
  var chkOfficials = $get("chkOfficials")
  var chkADs = $get("chkADs")
  var chkCoaches = $get("chkCoaches")
  var chkSchool = $get("chkSchool")

  if ((chkAssigners.checked == false) &&
        (chkOfficials.checked == false) &&
        (chkADs.checked == false) &&
        (chkCoaches.checked == false) &&
        (chkSchool.checked == false)) {
    args.IsValid = false;
  } else {
    args.IsValid = true;
  }

}