// ** Check form **
function formcheck(formobj) {

    var fieldRequired = Array("navn", "adress");
    var fieldDescription = Array("Navn", "Adresse");
    var alertMsg = "Udfyld venligst:\n";
    var l_Msg = alertMsg.length;
    for (var i = 0; i < fieldRequired.length; i++) {
        var obj = formobj.elements[fieldRequired[i]];
        if (obj) {
            switch (obj.type) {
                case "select-one":
                    if (obj.selectedIndex == -1 || obj.options[obj.selectedIndex].text == "") {
                        alertMsg += " - " + fieldDescription[i] + "\n";
                    }
                    break;
                case "select-multiple":
                    if (obj.selectedIndex == -1) {
                        alertMsg += " - " + fieldDescription[i] + "\n";
                    }
                    break;
                case "text":
                case "textarea":
                    if (obj.value == "" || obj.value == null) {
                        alertMsg += " - " + fieldDescription[i] + "\n";
                    }
                    break;
                default:
                    if (obj.value == "" || obj.value == null) {
                        alertMsg += " - " + fieldDescription[i] + "\n";
                    }
            }
        }
    }

    if (alertMsg.length == l_Msg) {
        return true;
    } else {
        alert(alertMsg);
        return false;
    }
}