Long time ago i created simple live search. It works very well with jQuery v1.8.3, but does not work with jQuery 3.1.1. 

HTML

2.              <div id="searcher" class="flexcroll">
3.                   <a class="close">×</a>
4.                   <form id="searchput" method="get">
5.                      <input type="search" value="" placeholder="Search..." onkeyup="search_movie(this)" class="co" />
6.                   </form>
7.                   <div class="search_box"></div>
8.                </div>

jQuery

2. function search_movie(elem) {
3.     var str = $(elem).attr('value');
4.     $.post('/scripts/search.php', {
5.         search: str
6.     }, function(data) {
7.         $('.search_box').html(data)
8.     })
9. }

What i need to change to make search work?

Thanks a lot!