[HTML] pobierz, plaintext 
<input type="radio" name="" value="0"> brak
<input type="radio" name="" value="1"> standard
<input type="radio" name="" value="2"> własne
 
<textarea name="costam"> </textarea>
[HTML] pobierz, plaintext 

[JAVASCRIPT] pobierz, plaintext 
<script language="javascript" type="text/javascript">
<!--
function testuj() {
  wybor = "";
  for (i=0; i<document.f1.kolor.length; i++)
    if (document.f1.kolor[i].checked) wybor=document.f1.kolor[i].value;
 
  if (wybor=="inny") {
    document.f1.pole1.disabled=false;
  } else {
    document.f1.pole1.value="";
    document.f1.pole1.disabled=true;
  }
}
// -->
</script>
[JAVASCRIPT] pobierz, plaintext 

[HTML] pobierz, plaintext 
<form action="skrypt.php" name="f1" method="get">
Ulubiony kolor?
<br /><input type="radio" name="kolor" value="biały" onclick="testuj()" />
 biały
<br /><input type="radio" name="kolor" value="czerwony" onclick="testuj()" />
 czerwony
<br /><input type="radio" name="kolor" value="czarny" onclick="testuj()" />
 czarny
<br /><input type="radio" name="kolor" value="inny" onclick="testuj()" />
inny (wpisz jaki)
<br /><textarea name="pole1" rows="5" cols="20" disabled="disabled"></textarea>
<br /><input type="button" value="OK" />
</form>
[HTML] pobierz, plaintext 

[HTML] pobierz, plaintext 
<input type="radio" name="OnOff" value="0" onclick="clause();"> brak
<input type="radio" name="OnOff" value="1" onclick="clause();"> standard
<input type="radio" name="OnOff" value="2" onclick="clause();"> własne
 
<textarea name="costam"> </textarea>
[HTML] pobierz, plaintext