and show form based on that variable in single page, without pressing SUBMIT or buttons?
i have loop for fill 'select' in FORM
echo '<select name="inne_zad" class="cfpa" width="400" style="width: 400px"  >';
    echo '<option value="">Nr Zadania | Typ Zadania | Nazwa Wioski</option>';
        while($option = mysql_fetch_assoc($zadanie1)) {
            echo '<option value="'.$option['id_zadania'].'">'.' '.$option['id_zadania'].' - '.$option['rodzaj_zadania'].' - '.$option['zad_cel_nazwa'].' '.'</option>';
        }
echo '</select>';
and css rule
<style>
 .cfp {  display: none;   }
.cfpa:checked + .cfp {
    display: block;
  }
</style>
and div outside form (inside FORM css display none - not working..
echo '      <div class="cfp">';
echo '        some other content';
            if ($_POST['id_zadania'] == 7 ){ echo 'wybrales 7'; }
echo '    </div>';
I want to get selected variable, and display other part of the FORM
is it possible with PHP and CSS only?
 
    