<script type="text/javascript">
<!--
function formValidation(form){
radioOption = -1
for (counter=0; counter<document.sond.opts.length; counter++) {
if (document.sond.opts[counter].checked) {
radioOption = counter
}
}
if (radioOption == -1) {
alert("seleziona!")
return false
}
return (true);

}
//-->
</script>

