CRM5.2 UI-Call a dynamic URL on button click

Question

Hi all, 
           My requirement is to call a dynamic url on the click of a button in the overview page. I have added a custom button in  the method  IF_BSP_WD_TOOLBAR_CALLBACK~GET_BUTTONS , and the related code in do_handle_event.I have created a custom method for the button event. I have enhanced a custom controller and created an attribute.In the custom method created for the button event, I have written the code for retrieving the parameters to be passed to the url.
In the layout of the view associated with the display view , I have written the following code for calling the URL in a new window.
<%
DATA: lr_cuco_EMA TYPE REF TO ZL_BP_CONT_BPCONT_IMPL,
      lv_url TYPE string,
      lv_url1 type string,
      lv_count type i.
  lr_cuco_EMA ?= controller->get_custom_controller( 'ZBP_CONT/BPCONT' ).
  check lr_cuco_EMA is bound.
  if lr_cuco_EMA->gv_VALUE is not initial.
  if lr_cuco_EMA->gv_COUNT IS NOT INITIAL.
  clear lr_cuco_EMA->gv_COUNT.
  endif.
  LV_URL = lr_cuco_EMA->gv_VALUE.
  Concatenate 'http:/' LV_URL  into LV_URL1.
  Concatenate '"http:/' LV_URL '"' into LV_URL.
    lv_count = lr_cuco_EMA->gv_COUNT mod '2'.
    if lv_count Ne 0.
  lv_url = lv_url1.
endif.
  %>
     <scrpt language="Javascript">
        window.open(<%= lv_url%>).focus();
      </script>
   <%
         lr_cuco_EMA->gv_COUNT = lr_cuco_EMA->gv_COUNT + 1.
         clear lr_cuco_EMA->gv_value.
         clear lv_count.
         clear lv_url.
         clear lv_url1.
         ENDIF.
%>
But here my URl is getting called alternate times.If I do not write the code  by using the variable GV_COUNT the url is getting called only the first time of the button click  and to call the URL again you need to navigate back to the search page and again back to the overview page and click on the button.
Can anyone help me regarding this? I want the URL to be called in a new page on every button click.
Thanks in Advance,
Chandana

Answer 1

Hi Nisha,
The crux of your issue here is that you want to call the event triggered with onClick before calling the event triggered on onClientClick. This can be achieved by the following code in the function called on the onClientClick.
function fn_button()
           htmlbSL(this,2,'b_row_selection:onInputProcessing()');
           window.open("new_page",target="BLANK");
Here, fn_button is the javascript function called on button click, and b_row_selection is the event triggered on the onClick event of row selection.
Try this out and let us know if it works for you.
Regards,
Saurabh