<HTML>
<HEAD>
<TITLE>Odnajdywanie zaznaczonego przycisku opcji</TITLE>
<SCRIPT LANGUAGE="JavaScript">
function getSelectedButton(buttonGroup){
    for (var i = 0; i < buttonGroup.length; i++) {
        if (buttonGroup[i].checked) {
            return i
        }
    }
    return 0
}
function fullName(form) {
    var i = getSelectedButton(form.stooges)
    alert("Wybrany Stooges to: " + form.stooges[i].value + ".")
}
function cycle(form) {
    var i = getSelectedButton(form.stooges)
    if (i+1 == form.stooges.length) {
        form.stooges[0].checked = true
    } else {
        form.stooges[i+1].checked = true
    }
}
</SCRIPT>
</HEAD>

<BODY>
<FORM>
<B>Wybierz swego ulubionego Stoogesa:</B>
<P><INPUT TYPE="radio" NAME="stooges" VALUE="Moe Howard" CHECKED>Moe
<INPUT TYPE="radio" NAME="stooges" VALUE="Larry Fine" >Larry
<INPUT TYPE="radio" NAME="stooges" VALUE="Curly Howard" >Curly
<INPUT TYPE="radio" NAME="stooges" VALUE="Shemp Howard" >Shemp</P>
<P><INPUT TYPE="button" NAME="Viewer" VALUE="Wywietl imi i nazwisko..." 
onClick="fullName(this.form)"></P>
<P><INPUT TYPE="button" NAME="Cycler" VALUE="Poka nastpnego" 
onClick="cycle(this.form)"> </P>
</FORM>
</BODY>
</HTML>