Retrieve rendered output within same page

I have a page that is rendered correctly. On this page I have a button and I wish to save a selection of the page as html when the user click on the button.
I saw in MyFaces and Tomahawk that they added the tag Buffer that allows you to render into a buffer, does anyone know of anything similar for standard JSF?
Edited by: plukkie on Sep 18, 2010 1:03 AM

If you are beginner, please have a look at help.sap.com material or material in SDN. it will answer basic question.
Layout:
 <htmlb:inputField id = "field1"
 type = "integer"
 size = "30"
 maxlength = "30"
 value = "<%= var1%>"
/>
 <htmlb:inputField id = "field2"
 type = "integer"
 size = "30"
 maxlength = "30"
 value = "<%= var2%>"
/>
 <htmlb:inputField id = "field3"
 type = "integer"
 size = "30"
 maxlength = "30"
 value = "<%= var3%>"
/>
Page attribute:
var1 type int4
var2 type int4
var3 type int4
Oninputprocessing:
DATA EVENT TYPE REF TO CL_HTMLB_EVENT.
IF NOT EVENT_ID IS INITIAL.
EVENT ?= CL_HTMLB_MANAGER=>GET_EVENT_EX( REQUEST ).
IF NOT EVENT IS INITIAL.
 CASE EVENT->SERVER_EVENT.
 WHEN 'submit'.
 var3 = var1 + var2.
 ENDCASE.
ENDIF.
ENDIF.
*Reward each useful answer
Raja T

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