Extracting Highlighted Radio Button
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.songs);
alert("You chose " + form.songs[i].value + ".");
}
function cycle(form) {
var i = getSelectedButton(form.songs)
if (i+1 == form.songs.length) {
form.songs[0].checked = true
} else {
form.songs[i+1].checked = true
}
}