Clear filters

Hi, in my component i have the filters on top of the items list.
It works fine but when i go to another page of the site and then i return on the items page, the filter are active with the previous settings.
there is a way to clear the filter if i change the page from the menu? (not from the pagination obviously)

Another thing, when i press the clear button, the form become empty but the page was refreshed without the catid (important for me)

Did you ever work out how to do this? I have a similar issue.