function CheckPOI(form, postback) {
  if (form.ddlPOIType.options[0].selected) {
    alert("Please select a Place of Interest type.");
    return false;
  }
  eval(postback);
}

function CheckCriteria(form, postback) {
  if (form.tboStreetName.value == "" && form.tboLastName.value == "" && form.tboDeedVolume.value == "") {
    alert("Please enter a value in at least one of these fields: Street, Owner Last Name, Deed: Volume.");
    return false;
  }
  eval(postback);
}