Add/Remove Boxes Help Requested

Add/Remove Boxes Help Requested

I am brand new to jQuery and I am sure that this is a simple, nuts-and-bolts mistake.  I apologize in advance for taking people's time but I have been looking at this for about 14 hours and I think it's time to ask for help.

I have a web page with two <div>s on it and I wrote jQuery code that adds another, similar <div> when an "add" button is clicked elsewhere on the page.  That works fine (including stopping and delivering an error message once a total of 6 of these <divs> are on the site.)

The problem comes when I try to remove.  I can remove the two <div>s that were hard-coded into the HTML but I cannot remove any of the new <div>s that jQuery creates dynamically.  That makes sense somehow but I don't know what to do about it.

So here's the code:

/* addFilter.js
adds (and removes) "filters"
*/

$(document).ready(function() {

            var numberOfFilters = $('div.filterbox').size();

            // add a filter when "Add Filter +" button is pressed
            $('a.button-add').click(function() {           
                if (numberOfFilters < 6) {
                     $('div.filterbox:first').clone().removeAttr('id').attr('id', 'filterNumber' + 3 + '').fadeIn('slow').appendTo('#filterWrapper');
                     numberOfFilters = Number(++numberOfFilters);     
                     return true;
                 } else {
                     alert('Sorry.  You may use a maximum of 6 filters.');
                     return false;
                 } // END check for no more than 6 filters
             });// END add function
            
            // removes a filter when its X is clicked, so long as there is at least one such element            
             $('a.remove_filter').click(function() {
                         var thisFilter = $(this).parent().parent();
                         var filterId = $(thisFilter).attr('id');
                         if (numberOfFilters > 1) {
                            $(thisFilter).remove();
                            numberOfFilters = Number(--numberOfFilters);
                            //alert(numberOfFilters);
                            return true;
                        } else {
                            alert('Oops.  You must have at least one filter.  You can hide the filters by clicking "Advanced Search" again.');
                            return false;
                        }
            });// END remove function            
      }); //(document).ready
     
      // END addfilter.js

Thank you in advance for your suggestions.