radiobuttonlist change event with javascript

[ptvce]

I have 2 RadioButtonList rdBtnPersonel_Status and rdBtnPersonel_FoodStatus i wrote :

<asp:RadioButtonList runat="server" ID="rdBtnPersonel_Status" RepeatDirection="Horizontal" Width="100%"
DataSourceID="ObjDsPersonelStatuses" onclick="javascript:radioButtonListOnClick('<%#((RadiobuttonList)Container.FindControl("rdBtnPersonel_Status")).ClientID %>');">

                                                                        </asp:RadioButtonList>

i want when i click rdBtnPersonel_Status , if the valu eual A the rdBtnPersonel_FoodStatus be disabled. (with javascript) can any body help me?