Unhide parameter pane in main report

Hi all, i have ssrs main report with from and to date parameter which has table which displays just names of sub reports(text). when user clicks on report name it will redirect to sub report based on parameters given in main report.
in sub report i have text box go to main report.
when it revert backs to main report, parameter pane is hiding.
i tried following options but didn't worked
i used go to report action in sub report text box and tried to pass parameter but didn't worked.
i used go to url option where i set &rc:parameter = true but that also didn't worked
i used javascript:back(1)--not exact correct syntax something which i found on web

can some one tell how we can unhide parameter pane when going back to main report from other report by having some default parameter value.

Please note that fromdate and to date parameters have default value to today. when i didn't gave any default value to parameter in main report then when going back to main report, parameter pane is not hiding. but as per business requirement they want default value as today.
also in my local visual studio i don't have this hiding of parameter pane issue. problem arised only when report is deployed to server.

main report and all sub reports are having same from date and to date parameter.
kindly someone guide me on this. thanks in advance