my $filename = $_;
    from_to( $filename, "CP1251", "UTF8" );

    my $mech = $mech->clone();

    my $form = $mech->form_number(1);
    $mech->field( 'ctl00$ctl00$Body$MainWorkSpacePlaceHolder$fuDocumentUpload',
        $config->{source_folder} . "/" . $_ );
    $form->find_input(
        'ctl00$ctl00$Body$MainWorkSpacePlaceHolder$fuDocumentUpload')->filename($filename);
    $mech->submit_form(

        form_number => 1,
        button => 'ctl00$ctl00$Body$MainWorkSpacePlaceHolder$btnCommitUpload',
    );