Estrarre un valore da una function

[cavicchiandrea]

Aggiungi step 4

function setapp4(chooser) {
	var baby = document.form1.elements["Personen"].options[document.form1.elements["Personen"].selectedIndex].value-chooser.options[chooser.selectedIndex].value
    var where = (navigator.appName == "Microsoft Internet Explorer") ? -1 : null;
	var newElem1;
    var appChooser = document.form1.elements["Baby"];
	 while (appChooser.options.length) {
        appChooser.remove(0);
    }
	if(chooser.options[chooser.selectedIndex].value==''){
	appChooser.remove(0);
            }else{
			newElem1 = document.createElement("option");
            newElem1.text = baby;
            newElem1.value = baby;
            appChooser.add(newElem1, where);
			}

e lo richiami dalla select adulti.