$( "#userSchool" )
            // don't navigate away from the field on tab when selecting an item
            .bind( "keydown", function( event ) {
                if ( event.keyCode === $.ui.keyCode.TAB &&
                        $( this ).data( "autocomplete" ).menu.active ) {
                    event.preventDefault();
                }
            })
            .autocomplete({
                source: function( request, response ) {

                    $.getJSON( "<?php bloginfo( 'wpurl' ); ?>/wp-admin/admin-ajax.php",
                    {
                        term: extractLast( request.term ), action: 'filter_schools', postType: 'school'
                    },
                    response );

                },

                select: function( event, ui ) {

                    var terms = split( this.value );
                    // remove the current input
                    terms.pop();
                    // add the selected item
                    terms.push( ui.item.value );
                    // add placeholder to get the comma-and-space at the end
                    terms.push( "" );
                    this.value = terms.join( ", " );
                    return false;

                },
                open: function() { $('.ui-menu').width(300) }

            });

      });