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			var removeNextColumns = function() {
				var line = $(this);
				var column = line.parent();

				column.nextAll().slice(1).remove();

				column.find('li').removeClass('selected parentSelected');

				line.addClass(line.hasClass('parent') ? 'parentSelected' : 'selected');

				var node = $('<span>', {
					'text': line.text()
				}).data('id', line.data('id')).click(function() {
					columns.children().slice((($(this).index() * 2) + 4)).remove();
					columns.children('ul:last').find('li').removeClass('parentSelected');
					path.children().slice($(this).index() + 1).remove();
				}).appendTo(path);

				var child = column.index();

				child -= (child - (child / 2));

				path.scrollLeft(node.position().left).children().slice(child, -1).remove();
			};

			var buildColumn = function(lines) {
				if (lines == null) {
					$('li.parentLoading').remove();
				} else {
					if (currentLine && toolbar) {
						toolbar.children().remove();

						$.each(settings.toolbar.options, function(key, callback) {
							$('<span>', {
								'text': key
							}).click(function() {
								callback.call(miller, currentLine.data('id'))
							}).appendTo(toolbar);
						});
					}

					if (currentLine) {
						var currentColumn = currentLine.parent();
						var scroll = 0;
						var scrollTop = currentColumn.scrollTop();
						var topOfCurrentLine = currentLine.position().top;

						if (topOfCurrentLine < 0) {
							scroll = topOfCurrentLine;
						} else {
							var bottomOfCurrentLine = currentLine.position().top + currentLine.height();
							var heightOfCurrentColumn = currentColumn.height();

							if (bottomOfCurrentLine > heightOfCurrentColumn) {
								scroll = bottomOfCurrentLine - heightOfCurrentColumn;
							}
						}

						currentColumn.scrollTop(scrollTop + scroll);
					}

					var width = 0;
					var lastGrip = columns.children('div.grip:last')[0];

					if (lastGrip) {
						lastGrip = $(lastGrip);
						width = lastGrip.position().left + lastGrip.width() + columns.scrollLeft();
					}

					if (lines.length <= 0) {
						var line = $('li.parentLoading').removeClass('parent').addClass('selected');
						// $(this).data('taxonomy_id', data['taxonomy_id']);

						if (!$.isEmptyObject(settings.pane.options)) {
							var pane = $('<ul>').css({
								'top': 0,
								'left': width
							}).addClass('pane');

							var id = line.data('id');
							var taxonomy_id = line.data('taxonomy_id');

								console.log('currentLine', currentLine.data('taxonomy_id'));
							$.each(settings.pane.options, function(key, callback) {
								$('<li>', {
									'text': key
								}).click(function() {
									callback.call(miller, currentLine.data('taxonomy_id'))
								}).appendTo(pane);
							});

							columns.append(pane).scrollLeft(width + pane.width());
						}
					} else {
						$('li.parentLoading').addClass('parentSelected');

						var column = $('<ul>').css({
							'top': 0,
							'left': width
						});

						$.each(lines, function(id, data) {
							var line = $('<li>', {
								'text': data['name']
							}).data('id', data['id']).data('taxonomy_id', data['taxonomy_id']).click(removeNextColumns).click(getLines).appendTo(column);

							if (data['parent']) {
								line.addClass('parent');
							}
						});

						columns.append(column).scrollLeft(width += column.width()).append(
							$('<div>', {
								'class': 'grip'
							}).css({
								'top': 0,
								'left': width
							}).mousedown(function(event) {
								var x = event.pageX;
								var cursor = columns.css('cursor');

								columns.css('cursor', 'col-resize').mousemove(function(event) {
									var delta = event.pageX - x;
									var newWidth = column.width() + delta;

									if (newWidth > settings.minWidth) {
										column.width(newWidth).nextAll().each(function() {
											$(this).css('left', $(this).position().left + delta + columns.scrollLeft());
										});
									}

									x = event.pageX;
								}).mouseup(function() {
									columns.off('mousemove').css('cursor', cursor);
								});
							})
						);
					}
				}
			};

			var getLines = function(event) {
				if (currentAjaxRequest) {
					currentAjaxRequest.abort();
				}

				currentLine = $(event.currentTarget).removeClass('parentSelected').addClass('parentLoading');
				currentAjaxRequest = $.getJSON(settings.url($(this).data('id')), function(response) {
					buildColumn(response.data);
				}).always(function() {
					currentLine.removeClass('parentLoading');

					currentAjaxRequest = null;
				}).fail(function() {

				});
			};

			$.getJSON(settings.url(), function(response) {
				buildColumn(response.data);
			});

			return miller;
		}
	};
})(jQuery);