Communication between two Jsps using Javascript

I m new to use Javascript.
I will really aprreciate if someone take some time and clarify my doubt.
Here is the situation
There is a 'Browse' hyperlink on the Parent.jsp. As soon as, i click the link, a new jsp Child.jsp is opening with the values coming from the backend. As the user selects some values in the Child jsp and say 'Add', the values should be transfered and displayed ( can be done by creating dyanamic 'divs')to the Parent jsp. Here is the tricky one. The Parent.jsp should not refreshed.
I tried so hard to achive this, but failed miserably.
(Creation of dynamic divs is just a way to achive this)
Can you please help me out in this? Is there any other way, this requirement can be achived?
Advance thanks

Hope this would help
http://digital.ni.com/public.nsf/allkb/B937AC4D8664E37886257206000551CB
Parallel port acess VIs will be in found in the following path.
C:\Program Files\National Instruments\LabVIEW xxxx\examples\portaccess\parallel port examples.llb
However,the above VIs doesn't support Windows Vista & Later.

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