Thank you for your quick answer!
An example: On page 1 the visitor can filter by regions (south, west, …). He choose south and clicks the search button. Now he gets only shown results filtered by south on page 2. On page 2 are several addional filters (beside the filter regions). In the regions filter south should be allready clicked automatically when page 2 is shown. So further results will also be filtered by south without the need to click this checkbox again on page 2.
And yes I would like to hide the regions filter on page 2, but it should stay as clicked. I think I will get this point managed by CSS.
Thank you!