Button click code is not working

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ASP.NET

jQuery

In Button OnClientClicked am calling simple jquery following, for conformation message from user. If user press yes then it should do button click event, but it is not doing.

My java script Code:

function OnClientClicked_CheckConfirm(button, args) 
{
    var objhidConfirmMessage = document.getElementById(hidConfirmMessage);
    var objhidConfirmOKBtnText = document.getElementById(hidConfirmOKBtnText);
    var objhidConfirmCANCELBtnText = document.getElementById(hidConfirmCANCELBtnText);
    if (objhidConfirmMessage != null) 
    {
        button.set_autoPostBack(false);
        jConfirm(objhidConfirmMessage.value, 'Confirmation Dialog', objhidConfirmOKBtnText.value, objhidConfirmCANCELBtnText.value, function (r) {
            if (r) {
                __doPostBack(button.get_id(), "");
                blnConfirm = true;
            }
        });
    }

button source code

<telerik:RadButton ID="tlkBtnQuickFormatCaptureDrive" runat="server" SkinID="btnGeneral"
                            OnClientLoad="OnClientLoad_HideTlkBtnToolTip" OnClientClicked="OnClientClicked_CheckConfirm" OnClick="OntlkBtnQuickFormatCaptureDrive_Click">
                            </telerik:RadButton>

Am I missing any thing in __doPostBack().

Needs to call button click event in pageload().

please help me.