POP UP IN BSP MVC-NO java script code

Question

1.when ever I click on one Button in BSP application(MVC) ,One pop up should trigger with Yes or NO options.
2.If user selects Yes I need to proceed further.
I can do it through javascript code in page layout,AS I am doing changes in Standard application I do not want to change page layout .
But I am looking to trigger pop up from abap code ,because I can enhance the class and implement post exit to event handler methods.
BSP application name: HRRCF_ACT_PROC.
View Name: List.do
Event handler : Ondelete ( ).
Domain: erecruiting
I can create a new ZBSP apllication and view as yes or no options
But how to call that new BSP application as POP UP and sned back data to original application

Answer 1

1/In your BSP application YES /NO use this function identify computer name ***************************
  data: iRFCHOST type RFCHOST,
       oRFCHOST type RFCHOST.
  CALL FUNCTION 'TH_USER_INFO'
    IMPORTING
      TERMINAL = iRFCHOST.
  CALL FUNCTION 'RFC_IP_TO_HOST'
    EXPORTING
      RFCIP                       = IRFCHOST
    IMPORTING
      RFCHOST                     = ORFCHOST
    EXCEPTIONS
      IP_TO_HOST_CONVERSION_ERROR = 1
      OTHERS                      = 2.
  IF SY-SUBRC <> 0.
MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
        WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
  ENDIF.
2/Save computer name and decison Yes/No to custom table *************************************
3/In you BSP aplication use function identify computer name(terminal name) and look to custom table for decision Yes/No
Note: It will work if user will not work with multiple seesion