File list (Check if you may need any files):
dhtmlxCombo
...........\codebase
...........\........\dhtmlxcombo.css
...........\........\dhtmlxcombo.js
...........\........\dhtmlxcommon.js
...........\........\ext
...........\........\...\dhtmlxcombo_extra.js
...........\........\...\dhtmlxcombo_group.js
...........\........\...\dhtmlxcombo_whp.js
...........\........\imgs
...........\........\....\bg_selection.gif
...........\........\....\blank.gif
...........\........\....\combo_select.gif
...........\........\....\combo_select_dhx_black.gif
...........\........\....\combo_select_dhx_blue.gif
...........\........\....\combo_select_dhx_skyblue.gif
...........\readme.txt
...........\samples
...........\.......\01_initialization
...........\.......\.................\01_combo_groups.html
...........\.......\.................\02_combo_init.html
...........\.......\.................\04_combo_object_init.html
...........\.......\.................\05_combo_skin.html
...........\.......\.................\index.html
...........\.......\.................\php
...........\.......\.................\...\2.php
...........\.......\.................\...\3.php
...........\.......\02_actions
...........\.......\..........\01_combo_actions.html
...........\.......\..........\02_combo_api.html
...........\.......\..........\03_combo_save.html
...........\.......\..........\index.html
...........\.......\..........\php
...........\.......\..........\...\dumpPost.php
...........\.......\03_options
...........\.......\..........\01_combo_auto_position.html
...........\.......\..........\02_combo_auto_size.html
...........\.......\..........\03_combo_options.html
...........\.......\..........\inc
...........\.......\..........\...\frm1.html
...........\.......\..........\index.html
...........\.......\04_filtering
...........\.......\............\01_combo_big_db.html
...........\.......\............\02_combo_filter.html
...........\.......\............\index.html
...........\.......\............\php
...........\.......\............\...\complete.php
...........\.......\............\...\loadCombo.php
...........\.......\05_events
...........\.......\.........\01_combo_events.html
...........\.......\.........\index.html
...........\.......\common
...........\.......\......\1.xml
...........\.......\......\100000words.txt
...........\.......\......\config.php
...........\.......\......\countries.txt
...........\.......\......\css
...........\.......\......\...\style.css
...........\.......\......\data.xml
...........\.......\......\data_03_options.xml
...........\.......\......\data_a.xml
...........\.......\......\icons
...........\.......\......\.....\accordion.gif
...........\.......\......\.....\ajax.gif
...........\.......\......\.....\arrow.gif
...........\.......\......\.....\bullet.gif
...........\.......\......\.....\calendar.gif
...........\.......\......\.....\chart.gif
...........\.......\......\.....\chm.gif
...........\.......\......\.....\colorpicker.gif
...........\.......\......\.....\combo.gif
...........\.......\......\.....\connector.gif
...........\.......\......\.....\dataprocessor.gif
...........\.......\......\.....\datastore.gif
...........\.......\......\.....\dataview.gif
...........\.......\......\.....\designer.gif
...........\.......\......\.....\editor.gif
...........\.......\......\.....\file.gif
...........\.......\......\.....\file_link.gif
...........\.......\......\.....\folders.gif
...........\.......\......\.....\form.gif
...........\.......\......\.....\gantt.gif
...........\.......\......\.....\grid.gif
...........\.......\......\.....\icon_spreadsheet.gif
...........\.......\......\.....\layout.gif
...........\.......\......\.....\menu.gif
...........\.......\......\.....\message.gif
...........\.......\......\.....\none.gif
...........\.......\......\.....\old.gif
...........\.......\......\.....\pdf.gif
...........\.......\......\.....\scheduler.gif
...........\.......\......\.....\slider.gif
...........\.......\......\.....\source.gif
...........\.......\......\.....\tabbar.gif
...........\.......\......\.....\toolbar.gif
...........\.......\.