function SearchParamsOk()
{
  //if (document.getElementById('id-part-id').value == 0)
  //  return false;

  var notice = '';
  if ((document.getElementById('id-search-by').value == 0))
  {
    if ((document.getElementById('id-service-id').value == 0) && (document.getElementById('id-service-name').value == ""))
      notice += 'Введите название работы или услуги!\n';
    else if ((document.getElementById('id-service-id').value == 0) && (document.getElementById('id-service-name').value != ""))
      notice += 'Такой работы или услуги не найдено!\n';
    document.getElementById('id-service-name').focus();
  }
  if ((document.getElementById('id-search-by').value == 1))
  {
    if ((document.getElementById('id-sto-id').value == 0) && (document.getElementById('id-sto-name').value == ""))
      notice += 'Введите название СТО!\n';
    else if ((document.getElementById('id-sto-id').value == 0) && (document.getElementById('id-sto-name').value != ""))
      notice += 'Такого СТО не найдено!\n';
    document.getElementById('id-sto-name').focus();
  }
  if ((document.getElementById('id-search-by').value == 2))
  {
    if ((document.getElementById('id-street-name-id').value == 0) && (document.getElementById('id-street-name').value == ""))
      notice += 'Введите улицу!\n';
    else if ((document.getElementById('id-street-name-id').value == 0) && (document.getElementById('id-street-name').value != ""))
      notice += 'Такой улицы не найдено!\n';
    document.getElementById('id-street-name').focus();
  }

  if (notice) {
    alert(notice);
    return false;
  }
  else {
    return true;
  }
}
function tabs_switch(ul_id, act_id, focus_field, num_tabs)
{
  var children = document.getElementById(ul_id).childNodes;
  for (var i=0; i < children.length; i++)
    if (children[i].className = "item current_white")
      children[i].className = "item";
  document.getElementById(ul_id+'-'+act_id).className = "item current_white";
  for (var i = 0; i < num_tabs; i++)
    document.getElementById('id-searchfield-'+i).style['display'] = "none";
  document.getElementById('id-searchfield-'+act_id).style['display'] = "block";
  document.getElementById('id-search-by').value = act_id;

  document.getElementById('id-service-id').value = 0;
  document.getElementById('id-sto-id').value = 0;
  document.getElementById('id-street-name-id').value = 0;
  document.getElementById('id-service-name').value = "";
  document.getElementById('id-sto-name').value = "";
  document.getElementById('id-street-name').value = "";
  document.getElementById('id-result-sto').innerHTML = "";
  document.getElementById('id-result-service').innerHTML = "";
  document.getElementById('id-result-street').innerHTML = "";

  if (focus_field)
    if (document.getElementById(focus_field))
      document.getElementById(focus_field).focus();
}