function showAlert(sMessage, fOnAfterHide, sDescription){
        if(!htVar.oAlertDialog){
            htVar.oAlertDialog = new yobi.ui.Dialog("#yobiDialog");
        }

        htVar.oAlertDialog.show(sMessage, sDescription, {
            "fOnAfterHide": fOnAfterHide
        });
    }
Show alert dialog
@param {String} sMessage Message string
@param {Function} fOnAfterHide Call this function after hidden dialog (optional)
@param {String} sDescription Description string (optional)