• parent - string or object, id of container, where tree will be initialized, mandatory
• image_path - string, path to image folder, which will be used for icons in tree
• width - {string} width of tree, can be defined in pixels or in percents
• height - {string} height of tree, can be defined in pixels or in percents
• root_id - {string} id of virtual root item

• checkbox - {boolean}, show/hide checkboxes (all checkboxes in tree) ( enableCheckBoxes )
• checkbox_3_state - {boolean}, enable three state checkboxes ( enableThreeStateCheckboxes )
• context_menu - context menu object, enable context menu ( enableContextMenu )
• multiline - {boolean}, enable multi line items ( enableMultiLineItems )
• multiselect - {boolean}, enable multiselection ( enableMultiselection )
• editor - {boolean}, enable editing of item text ( enableItemEditor )
• hover - {boolean}, enable item highlighting (item text highlited on mouseover) ( enableHighlighting )
• smart_parsing - {boolean}, enable/disable smart XML parsing mode (usefull for big, well structured XML) ( enableSmartXMLParsing )
• xml - {string}, url of data xml file

• drag - {boolean}, enable/disable drag-and-drop ( enableDragAndDrop )
• drag_copy - {boolean}, enable drag without removing (copy instead of move) ( enableMercyDrag )
• drag_image - {boolean}, enable draging item image with item text ( enableImageDrag )
• drag_scroll - {boolean}, enable/disable auto scrolling while drag-and-drop ( enableDragAndDropScrolling )

• auto_save_selected - {boolean}, enable/disable autosaving selected node in cookie ( enableAutoSavingSelected )
• auto_tooltip - {boolean}, enable auto tooltips (node text as tooltip) ( enableAutoTooltips )
• checkbox_smart - {boolean}, enable smart checkboxes ,true by default (auto checking children and parents for 3-state checkboxes) ( enableSmartCheckboxes )
• distributed_parsing - {boolean}, enable distributed parsing of big tree (items loaded portion by portion with some timeouts) ( enableDistributedParsing )
• images - {boolean}, enable tree images ( enableTreeImages )
• image_fix - {boolean}, replace IMG tag with background images - solve problem with IE image caching , not works for IE6 SP1 ( enableIEImageFix )
• lines - {boolean}, enable/disable tree lines (parent-child threads) ( enableTreeLines )
• loading_item - {boolean}, enable/disable “Loading…” item ( enableLoadingItem )
• navigation - {boolean}, enable keyboard navigation in tree ( enableKeyboardNavigation )
• radio - {boolean}, replace checkboxes with radio buttons ( enableRadioButtons )
• radio_single - {boolean}, replace checkboxes with radio buttons ( enableSingleRadioMode )
• rtl - {boolean}, enables Right-to-Left mode in tree ( enableRTL )
• search - {boolean}, enable search items by pressing keys (any item in tree should be focused/selected to make search work) ( enableKeySearch )
• smart_rendering - {boolean}, enables smart rendering mode (usefull for big trees with lots f items on each level) ( enableSmartRendering )
• text_icons - {boolean}, replace images with text signs ( enableTextSigns )

any event can be assigned by using property equal to event name

	tree = new dhtmlXTreeObject({
		parent:"a_tree",
		onClick:function(){
			alert("I'm clicked");	
		}
	});