function do_search(submit) {

//  var searchText = document.getElementById('search_text');
  var searchText = document.getElementById('q');
  var searchForm = document.getElementById('search_form');

  if (searchText.value == "") {
    searchText.focus();
    alert('Please enter search text');
    if (submit)
      return false;
  } else {

    var searchValue = searchText.value.replace(/[^A-Za-z0-9 +-]/g, "");
    searchText.value = searchValue;
    searchValue = searchValue.replace(/[^A-Za-z0-9]/g, "_")
    document.location = '/list?q=' + searchValue;
//    document.location = root + '?q=' + searchValue;
    return false;
//    searchForm.action = searchForm.action + '/db.php?software=' + searchValue;
    if (submit)
      return true;
  }

}