how to reset the ADP index without having to reload the page

we have an ADP which stores result data after some search and displays the data in a table.

In the table definition I use multiple selection mode (row).When running the search for the first time and selecting the first row in the table, the $variables.keys[$current.index] is set to 0, since the selected row is the first row in the table (index 0 in the ADP).

However, when performing another search, the value of the selected index ( $variables.keys[$current.index] ) is not resetted to 0 after the new search but accumulates the results of the old search as well as the new search.