ckeditor plugin with crazy semaphore

dossiers_dialogs_dossiers.js

CKEDITOR.dialog.add( 'dossiersDialog', function ( editor ) {

    var selectedPersonId = null;

    var semaphoreActive = false;
    var start_inputs_value = 1;
    var inputs_count = 1;
    var searchValue = '';
    var person_select = null;

    function sendNameQuery()
    {
        $.ajax
        ({
            type: "GET",
            url: '/admin/dossiers',
            data: { data: searchValue },
            dataType: 'JSON'
        }).success(

            function(data, textStatus, jqXHR)
            {
                person_select.find('option').remove();
                $.each(data.names, function(index, element){
                    var new_option = new Option( element[0].name, element[0].id );
                    person_select.append(new_option);
                })
            }
        ).error(

            function(data, textStatus, jqXHR){
                alert('errors!');
            }
        )
    }

    function startSemaphore()
    {
        //set semaphore flag
        semaphoreActive = true;

        var intervalID = setInterval(function(){
            inputs_count = inputs_count - 1;
            if(inputs_count == 0)
            {
                clearInterval(intervalID);
                semaphoreActive = false;
                sendNameQuery();
            }
        }, 1000);
    }

    return {
        title: 'Ссылка на досье',
        minWidth: 400,
        minHeight: 200,
        contents: [
            {
                id: 'tab-basic',
                label: 'Basic Settings',
                elements: [
                    {
                        type: 'text',
                        label: 'Фамилия/Имя человека',
                        onInput: function(){
                            //store input value
                            searchValue = this.getValue()
                            //if semaphore deactivated - start it
                            if(!semaphoreActive)
                            {
                                inputs_count = start_inputs_value;
                                startSemaphore();
                                return;
                            }
                            else
                            {
                                inputs_count = start_inputs_value;
                                return;
                            }
                        }
                    },
                    {
                        type: 'hbox',
                        align: 'right',
                        width: '200px',
                        children: [
                            {
                                type: 'html',
                                html: '<image src="' + CKEDITOR.basePath + 'plugins/dossiers/icons/incognito.png" id="person_image" style="width:135px; height: 135px;"></image>'
                            },
                            {
                                type: 'select',
                                id: 'person_select',
                                label: 'Выберите досье',
                                items: [ [ 'Basketball' ], [ 'Baseball' ], [ 'Hockey' ], [ 'Football' ] ],
                                'default': '',
                                controlStyle: 'width: 200px;',
                                size: 3,
                                style: 'width:150px; height: 120px;',
                                onChange: function( api ) {
                                    selectedPersonId = this.getValue();
                                }
                            }
                        ]
                    }
                ]
            }
        ],
        onShow: function(){
            // BAD hook, don't know how to get elements by id from extended functions
            var select_id = this.getContentElement('tab-basic', 'person_select').domId;
            person_select = $('#' + select_id).find('select');

        },
        onOk: function() {

            if(selectedPersonId != null) {
                var selection = editor.getSelection();
                var text = selection.getSelectedText();

                var dossier_tag = editor.document.createElement('span');
                dossier_tag.setAttribute('class', 'dossier_popup');
                dossier_tag.setAttribute('style', 'color:blue;');
                dossier_tag.setText(text);
                dossier_tag.setAttribute('id', selectedPersonId);
                editor.insertElement(dossier_tag);
            }
            else
            {
                return;
            }
        }

    };
});

dossiers_plugin.js

CKEDITOR.plugins.add('dossiers',
    {
        icons: 'dossiers',
        init: function (editor) {

            editor.addCommand('openDialog', new CKEDITOR.dialogCommand('dossiersDialog', {
                allowedContent: 'span[id](dossier_popup){color}'}));

            editor.ui.addButton('Dossiers',
                {
                    label: 'Dossier Plugin',
                    command: 'openDialog',
                    toolbar: 'others'
                });
            CKEDITOR.dialog.add( 'dossiersDialog', this.path + 'dialogs/dossiers.js' );
        }
    });