Search form plugin

Hey guys,

i’m looking for a search form plugin that works similar the CTRL-F function in your browser or pdf viewer.
I only want to search in one page where the search form is placed. There are many textforms. When i type a search term or only a fragment i want to be shown the number of search results. that used to be marked in all the text and i want to have the opportunity with arrow key to jump to the next or previous search term.

Thanks a lot for any solution

Mika