$.cmfWidgetFormDoctrineNested = function (container_id, input_id, css_selector, url_action, max_depth, loader) {



	var input_src = $('#' + input_id);

	

	input_src.css('display', 'none');

	

	var _container = '<div id="' + container_id + '" class="nested_js"></div>';

	

	input_src.after(_container);

	var _main_container = $('#' + container_id);



	var _dynamic_zone = '<div class="dynamic_zone" style="float:left"></div>';

	_main_container.append(_dynamic_zone);



	var _loader_img = '<div class="loader" style="display:none;float:left;padding:3px 4px;"><img src="'+ loader + '" alt="" /></div>';



	_main_container.append(_loader_img);

	var loader_img = _main_container.children('.loader');



	var _addEventChange = function(selector, index)

	{

		selector.change(function() {

			obj = $(this);



			if(!isNaN(obj.val()) && obj.val() != '' && obj.val() != 0){

				input_src.val(obj.val());



				if(0 == max_depth || index < max_depth) {



					_killNextContainers(index);

					loader_img.css('display', 'block');



					$.post(url_action, { location_id: obj.val() },

							function(data){

						loader_img.css('display', 'none');

						data = jQuery.trim( data );

						if(data != '')

						{

							var selector = _buildSelector(index + 1);

							selector.html(data);

							selector.attr('disabled', '');

						}

					});

				}

			}else{
				if(index==1)
				{
					input_src.val(null);
				}else
				{
					previous = index-1;
					input_src.val($("#"+input_id+"_"+previous).val());
				}
				
			}

		});

	};



	var _killNextContainers = function(start_index)

	{

		var selectors = $('#' + container_id + ' .dynamic_zone').children('select');



		for(i = selectors.length - 1; i > start_index - 1; i -- ) {

			$(selectors[i]).remove();

		}

	};



	var _buildSelector = function(index)

	{

		var id = input_id + '_' + index;

		var name = container_id + '[' + index + ']';



		var selector = '<select id="' + id +'" name="' + name + '" ></select>';



		$('#' + container_id + ' .dynamic_zone').append(selector);



		selector = $('#' + id);



		_addEventChange(selector, index);



		return selector;

	};



	var _buildInitialSelectors = function(values, last_selected_option)

	{

		var selected_option = undefined == last_selected_option ? 0 : last_selected_option + 1;



		var tree_options_id = undefined == last_selected_option ? 0 : values[last_selected_option];

		

		if((0 == max_depth || selected_option < max_depth) && values.length+1 > selected_option) {





			var index = selected_option + 1;



			var id = input_id + '_' + index;

			var name = container_id + '[' + index + ']';



			var selector = '<select id="' + id +'" name="' + name + '" ></select>';



			loader_img.css('display', 'block');



			$.post(url_action, { location_id: tree_options_id },

					function(data){

				data = jQuery.trim( data );



				if(data != '')

				{

					$('#' + container_id + ' .dynamic_zone').append(selector);



					selector = $('#' + id);



					loader_img.css('display', 'none');

					selector.html(data);

					selector.attr('disabled', '');



					_option = values[selected_option];



					selector.val(_option);

					//$('#' + id + " option[selected]").removeAttr("selected");

					$('#' + id + " option[value='"+ _option + "']").attr("selected", "selected");



					_addEventChange(selector, index);



					_buildInitialSelectors(values, selected_option);

				}

			});

		}

	};



	var _buildInitialSelector = function()

	{

		var index = 1;



		var id = input_id + '_' + index;

		var name = container_id + '[' + index + ']';



		var selector = '<select id="' + id +'" name="' + name + '" ></select>';



		loader_img.css('display', 'block');



		$.post(url_action, { location_id: 0 },

				function(data){

			data = jQuery.trim( data );



			if(data != '')

			{

				$('#' + container_id + ' .dynamic_zone').append(selector);



				selector = $('#' + id);



				loader_img.css('display', 'none');

				selector.html(data);

				selector.attr('disabled', '');



				_addEventChange(selector, index);

			}

		});



	};



	return {



		init: function(values){



		if(values.length > 0) 

			_buildInitialSelectors(values);
			
		else

			_buildInitialSelector();



	}

	};

};