<script>
$(document).ready(function() {
var book_info = "";
var term = "200915";

  $('.crn').each(function(index) {
    var crn = $(this).text();

    $.getJSON("/proxy.php", { term: term, crn: crn }, function(data){
      book_info = data.TEXTBOOK_INFO;
    });

   $(this).parent("td").next("td").append(book_info);
 });
});
</script>