How do I get combobox type in javascript

[Matthew]

I have a switch statement in a javascript function that performs different actions based on the type of control that is being passed, however the sender.type of the RadComboBox is null. How do I get the type?

here is my javascript function:

function RefreshCsiOptions(sender) {
            switch (sender.type) {
                case "radio":
                    if (sender.checked == true) {
                        for (i = 0; i < cbxCSI.length; i++) {
                            var z = rcbCSI[i];
                            if (rcbCSI[i].get_selecteditem().get_value() != "") { rcbCSI[i].disabled = "disabled"; } else { cbxCSI[i].disabled = true; }
                            cbxCSI[i].checked = false;
                        }
                        lblWithoutCSI.disabled = "";
                    }
                    break;
                case "checkbox":
                    var cbxNumber = sender.id.substr(6, 1);
                    if (sender.checked == true) {
                        rcbCSI[cbxNumber - 1].disabled = "";
                        lblWithoutCSI.disabled = "disabled";
                        rbWITHOUT.checked = false;
                    } else {
                        rcbCSI[cbxNumber - 1].disabled = "disabled";
                    }
                    CheckWithoutStatus();
                    break;
                case "select-one":
                    var rcbNumber = sender.id.substr(14, 1);
                    if (rcbNumber == "_") rcbNumber = "0";
                    var rcbValue = rcbCSI[rcbNumber].get_selecteditem().get_value();
                    document.Form1.elements['CSI' + rcbNumber + '_value'].value = rcbValue;
                    if (rcbValue != "") {
                        cbxCSI[rcbNumber].disabled = false;
                        cbxCSI[rcbNumber].checked = true;
                        if (rbWITHOUT.checked == true) rbWITHOUT.checked = false;
                    } else {
                        cbxCSI[rcbNumber].disabled = true;
                        cbxCSI[rcbNumber].checked = false;
                        CheckWithoutStatus();
                    }
                    break;
                default:
                    //alert(sender.type);
                    break;
            }
        }

[Nencho]

Hi Matthew,

Could you please send us more information regarding the exact your scenario?
Where do you call the RefreshCsiOptions function?
Could you please send us a complete sample to examine it locally?

Greetings,
Nencho
the Telerik team