Hi!
A direct link cannot be made, because the search form information is submitted as well. However if the search is visible on the page, then you can make an API call for a search redirect via javascript, like so:
[php]ASP.api(1, ‘searchRedirect’, "");[/php]
This code will make a searchRedirect function call on the search instance ID=1, with an empty ” search phrase. You could possibly make an event handler on the onclick event of the link, and execute this API call, which will trigger a search request.