foreach (@{$parameters->{$_}})
      {
         if($_ ne "" && $_ !~ /^all/i)
         {
                  $query_field = $_;

                  # Remove unnecessary spaces.
                  $_ =~ s/\s{2,}/ /g;
                  $_ =~ s/^\s+//g;
                  $_ =~ s/\s+$//g;

                  @space_split_array = split / /, $_;

                  foreach (@space_split_array)
                  {
                     if ($_ =~ /^\d+$/ && 
                         scalar(@space_split_array) == 1 &&
                         $_ eq $query_field)
                     {
                        $where_clause .= "($real_field_name = $_) OR ";
                     }
                     else
                     {
                        $where_clause .= "($real_field_name LIKE '%$_%') AND ";
                     }
                  }
                  $where_clause =~ s/AND $/OR /;
	 }
      }