Get the "EmptyMessage" value from a different control from Javascript function

[Alessio]

Hello to everyone, 

I can get the EmptyMessage from the sender by sender.get_emptyMessage() method, but if I want to get the emptyMessage of a different control , how can I do?

Thanks for your tips.

Alessio Simoni.


Example:

function getEmptyTextOfCtrl2 (sender, eventArgs) {
var emptyMessage_ctrl1 = sender.get_emptyMessage();
var emptyMessage_ctrl2 = ????
        }

<telerik:RadNumericTextBox ID="ctrl1"  runat="server" EmptyMessage="654321"  >
 <ClientEvents OnValueChanging="getEmptyTextOfCtrl2"  />
            </telerik:RadNumericTextBox>

<telerik:RadNumericTextBox ID="ctrl2"  runat="server" EmptyMessage="123456" >
            </telerik:RadNumericTextBox>

[Alessio]

I find the solution

$find(ID).get_emptyMessage().

Thank you.