(function(){

var apiUrl = "https://export.dhtmlx.com/gantt";

var templates = [ 
	"leftside_text",
	"rightside_text",
	"task_text",
	"progress_text",
	"task_class"
];

function xdr(url, pack, cb){
	if (gantt.env.isIE){
		gantt.env.isIE = false;
		gantt.ajax.post(url, pack, cb);		
		gantt.env.isIE = true;
	} else {
		gantt.ajax.post(url, pack, cb);
	}
}

function defaults(obj, std){
	for (var key in std)
		if (!obj[key])
			obj[key] = std[key];
	return obj;
}

//compatibility for new versions of gantt
if(!gantt.ajax){
	if(window.dhtmlxAjax){
		gantt.ajax = window.dhtmlxAjax;
	}else if(window.dhx4){
		gantt.ajax = window.dhx4.ajax;
	}
}

function mark_columns(base){
	var columns = base.config.columns;
	if (columns)
		for (var i = 0; i < columns.length; i++) {
			if (columns[i].template)
				columns[i].$template = true;
	}
}


function add_export_methods(gantt){
	var color_box = null;
	var color_hash = {};

	function get_styles(css){
		if (!color_box){
			var color_box = document.createElement("DIV");
			color_box.style.cssText = "position:absolute; display:none;";
			document.body.appendChild(color_box);
		}
		if (color_hash[css])
			return color_hash[css];

		color_box.className = css;	
		return (color_hash[css] = get_color(color_box, "color")+";"+get_color(color_box, "backgroundColor"));
	}
	
	gantt._getWorktimeSettings = function() {

		var defaultWorkTimes = {
			hours : [0, 24],
			dates : {0:true, 1:true, 2:true, 3:true, 4:true, 5:true, 6:true}
		};

		var time;
		if(!gantt.config.work_time){
			time = defaultWorkTimes;
		}else{
			var wTime = gantt._working_time_helper;
			if (wTime && wTime.get_calendar) {
				time = wTime.get_calendar();
			} else if (wTime) {
				time = {
					hours : wTime.hours,
					dates : wTime.dates
				};
			} else if (gantt.config.worktimes && gantt.config.worktimes.global) {
				time = {
					hours : gantt.config.worktimes.global.hours,
					dates : gantt.config.worktimes.global.dates
				};
			} else {
				time = defaultWorkTimes;
			};
		}

		return time;
	};

	gantt.exportToPDF = function(config){
		if (config && config.raw){
			config = defaults(config, { 
				name:"gantt.pdf", data:this._serialize_html()
			});
		} else {
			config = defaults((config || {}), { 
				name:"gantt.pdf",
				data:this._serialize_all(),
				config:this.config
			});
			fix_columns(gantt, config.config.columns);
		}

		config.version = this.version;
		this._send_to_export(config, "pdf");
	};
	
	gantt.exportToPNG = function(config){
		if (config && config.raw){
			config = defaults(config, { 
				name:"gantt.png", data:this._serialize_html()
			});
		} else {
			config = defaults((config || {}), { 
				name:"gantt.png",
				data:this._serialize_all(),
				config:this.config
			});
			fix_columns(gantt, config.config.columns);
		}

		config.version = this.version;
		this._send_to_export(config, "png");
	};

	gantt.exportToICal = function(config){
		config = defaults((config || {}), { 
			name:"gantt.ical",
			data:this._serialize_plain().data,
			version:this.version
		});
		this._send_to_export(config, "ical");
	};
	
	function eachTaskTimed(start, end){
		return function(code, parent, master){
			parent = parent || this.config.root_id;
			master = master || this;

			var branch = this.getChildren(parent);
			if (branch)
				for (var i=0; i<branch.length; i++){
					var item = this._pull[branch[i]];
					if ((!start || item.end_date > start) && (!end || item.start_date < end))
						code.call(master, item);
					
					if (this.hasChild(item.id))
						this.eachTask(code, item.id, master);
				}
		};
	}

	gantt.exportToExcel = function(config){
		config = config || {};

		var tasks, dates;
		var state, scroll;
		if (config.start || config.end){
			state = this.getState();
			dates = [ this.config.start_date, this.config.end_date ];
			scroll = this.getScrollState();
			var convert = this.date.str_to_date(this.config.date_format);
			tasks = this.eachTask;

			if (config.start)
				this.config.start_date = convert(config.start);
			if (config.end)
				this.config.end_date = convert(config.end);

			this.render();
			this.eachTask = eachTaskTimed(this.config.start_date, this.config.end_date);
		}

		this._no_progress_colors =config.visual === "base-colors";

		config = defaults(config, { 
			name:"gantt.xlsx",
			title:"Tasks",
			data:this._serialize_table(config).data,
			columns:this._serialize_columns({ rawDates: true }),
			version:this.version
		});

		if (config.visual)
			config.scales = this._serialize_scales(config);

		this._send_to_export(config, "excel");

		if (config.start || config.end){
			this.config.start_date = state.min_date;
			this.config.end_date = state.max_date;
			this.eachTask = tasks;

			this.render();
			this.scrollTo(scroll.x, scroll.y);

			this.config.start_date = dates[0];
			this.config.end_date = dates[1];
		}
	};

	gantt.exportToJSON = function(config){
		config = defaults((config || {}), { 
			name:"gantt.json",
			data:this._serialize_all(),
			config: this.config,
			columns:this._serialize_columns(),
			worktime : gantt._getWorktimeSettings(),
			version:this.version
		});
		this._send_to_export(config, "json");	
	};

	function sendImportAjax(config){
		var url = config.server || apiUrl;
		var store = config.store || 0;
		var formData = config.data;
		var callback = config.callback;

		formData.append("type", "excel-parse");
		formData.append("data", JSON.stringify({
			sheet: config.sheet || 0
		}));

		if(store)
			formData.append("store", store);

		var xhr = new XMLHttpRequest();
		xhr.onreadystatechange = function (e) {
			if(xhr.readyState == 4 && xhr.status == 0){// network error
				if(callback){
					callback(null);
				}
			}
		};

		xhr.onload = function() {
			var fail = xhr.status > 400;
			var info = null;

			if (!fail){
				try{
					info = JSON.parse(xhr.responseText);
				}catch(e){}
			}

			if(callback){
				callback(info);
			}
		};

		xhr.open('POST', url, true);
		xhr.setRequestHeader("X-Requested-With", "XMLHttpRequest");
		xhr.send(formData);
	}

	gantt.importFromExcel = function(config){
		var formData = config.data;

		if(formData instanceof FormData){

		}else if(formData instanceof File){
			var data = new FormData();
			data.append("file", formData);
			config.data = data;
		}
		sendImportAjax(config);
	};

	gantt._msp_config = function(config){
		
		if (config.project)
			for (var i in config.project){
				if (!config._custom_data)
					config._custom_data = {};
				config._custom_data[i] = config.project[i](this.config);
			}
			
		if (config.tasks)
			for (var j = 0; j < config.data.length; j++){
				var el = this.getTask(config.data[j].id);
				if (!el._custom_data)
					el._custom_data = {};
				for (var i in config.tasks)
					el._custom_data[i] = config.tasks[i](el, this.config);
			}
				
		delete config.project;
		delete config.tasks;

		config.time = gantt._getWorktimeSettings();

		var p_dates = this.getSubtaskDates();
		var format = this.date.date_to_str("%d-%m-%Y %H:%i:%s");
		config.start_end = {
			start_date: format(p_dates.start_date),
			end_date: format(p_dates.end_date)
		};
	};

	gantt._msp_data = function(){
		var old_xml_format = this.templates.xml_format;
		var old_format_date = this.templates.format_date;
		this.templates.xml_format = this.date.date_to_str("%d-%m-%Y %H:%i:%s");
		this.templates.format_date = this.date.date_to_str("%d-%m-%Y %H:%i:%s");
		
		var data = this._serialize_all();

		this.templates.xml_format = old_xml_format;
		this.templates.format_date = old_format_date;
		return data;
	};

	gantt._ajax_to_export = function(data, type, callback){
		delete data.callback;

		var url = data.server || apiUrl;
		var pack = "type="+type+"&store=1&data="+encodeURIComponent(JSON.stringify(data));

		var cb = function(loader){
			var xdoc = loader.xmlDoc || loader;
			var fail = xdoc.status > 400;
			var info = null;

			if (!fail){
				try{
					info = JSON.parse(xdoc.responseText);
				}catch(e){}
			}
			callback(info);
		};

		xdr(url, pack, cb);
	};

	gantt._send_to_export = function(data, type){
		var convert = this.date.date_to_str(this.config.date_format || this.config.xml_date);
		if (data.config){
			data.config = this.copy(data.config);
			mark_columns(data, type);

			if(data.config.start_date && data.config.end_date){
				if(data.config.start_date instanceof Date){
					data.config.start_date = convert(data.config.start_date)
				}
				if(data.config.end_date instanceof Date){
					data.config.end_date = convert(data.config.end_date)
				}
			}
		}

		if (data.callback)
			return gantt._ajax_to_export(data, type, data.callback);

		var form = this._create_hidden_form();
		form.firstChild.action = data.server || apiUrl;
		form.firstChild.childNodes[0].value = JSON.stringify(data);
		form.firstChild.childNodes[1].value = type;
		form.firstChild.submit();
	};

	gantt._create_hidden_form = function(){
		if (!this._hidden_export_form){
			var t = this._hidden_export_form = document.createElement("div");
			t.style.display = "none";
			t.innerHTML = "<form method='POST' target='_blank'><textarea name='data' style='width:0px; height:0px;' readonly='true'></textarea><input type='hidden' name='type' value=''></form>";
			document.body.appendChild(t);
		}
		return this._hidden_export_form;
	};

	//patch broken json serialization in gantt 2.1
	var original = gantt.json._copyObject;
	function copy_object_base(obj){
		var copy = {};
		for (var key in obj){
			if (key.charAt(0) == "$")
				continue;
			copy[key] = obj[key];
		}

		var formatDate = gantt.templates.xml_format || gantt.templates.format_date;

		copy.start_date = formatDate(copy.start_date);
		if (copy.end_date)
			copy.end_date = formatDate(copy.end_date);

		return copy;
	}

	function copy_object_plain(obj){
		var text = gantt.templates.task_text(obj.start_date, obj.end_date, obj);

		var copy = copy_object_base(obj);
		copy.text = text || copy.text;

		return copy;
	}

	function get_color(node, style){
		var value = node.currentStyle ? node.currentStyle[style] : getComputedStyle(node, null)[style];
		var rgb = value.replace(/\s/g,'').match(/^rgba?\((\d+),(\d+),(\d+)/i);
		return ((rgb && rgb.length === 4) ? 
		("0" + parseInt(rgb[1],10).toString(16)).slice(-2) +
		("0" + parseInt(rgb[2],10).toString(16)).slice(-2) +
		("0" + parseInt(rgb[3],10).toString(16)).slice(-2) : value).replace("#","");
	}

	// Excel interprets UTC time as local time in every timezone, send local time instead of actual UTC time.
	// https://github.com/SheetJS/js-xlsx/issues/126#issuecomment-60531614
	var toISOstring = gantt.date.date_to_str("%Y-%m-%dT%H:%i:%s.000Z");

	// excel serialization
	function copy_object_table(obj){
		var copy = copy_object_columns(obj, copy_object_plain(obj));
		if (copy.start_date)
			copy.start_date = toISOstring(obj.start_date);
		if (copy.end_date)
			copy.end_date = toISOstring(obj.end_date);

		// private gantt._day_index_by_date was replaced by public gantt.columnIndexByDate in gantt 5.0
		var getDayIndex = gantt._day_index_by_date ? gantt._day_index_by_date : gantt.columnIndexByDate;

		copy.$start = getDayIndex.call(gantt, obj.start_date);
		copy.$end	= getDayIndex.call(gantt, obj.end_date);
		copy.$level	= obj.$level;
		copy.$type	= obj.$rendered_type;

		var tmps = gantt.templates;
		copy.$text = tmps.task_text(obj.start, obj.end_date, obj);
		copy.$left = tmps.leftside_text ? tmps.leftside_text(obj.start, obj.end_date, obj) : "";
		copy.$right = tmps.rightside_text ? tmps.rightside_text(obj.start, obj.end_date, obj) : "";
	
		return copy;
	}

	function copy_object_colors(obj){
		var copy = copy_object_table(obj);

		var node = gantt.getTaskNode(obj.id);
		if (node && node.firstChild){
			var color = get_color((gantt._no_progress_colors ? node : node.firstChild), "backgroundColor");
			if (color == "363636")
				color = get_color(node, "backgroundColor");

			copy.$color = color;
		} else if (obj.color)
			copy.$color = obj.color;

		return copy;
	}

	function copy_object_columns(obj, copy){
		for(var i=0; i<gantt.config.columns.length; i++){
			var ct = gantt.config.columns[i].template;
			if (ct) {
				var val = ct(obj);
				if (val instanceof Date)
					val = gantt.templates.date_grid(val, obj);
				copy["_"+i] = val;
			}
		}
		return copy;
	}

	function copy_object_all(obj){
		var copy = copy_object_base(obj);

		//serialize all text templates
		for (var i = 0; i < templates.length; i++){
			var template = gantt.templates[templates[i]];
			if (template)
				copy["$"+i]	= template(obj.start_date, obj.end_date, obj);
		}

		copy_object_columns(obj, copy);
		copy.open = obj.$open;
		return copy;
	}

	function fix_columns(gantt, columns){
		for (var i = 0; i < columns.length; i++) {
			columns[i].label = columns[i].label || gantt.locale.labels["column_"+columns[i].name];
			if (typeof columns[i].width == "string") columns[i].width = columns[i].width*1;
		}
	}

	gantt._serialize_html = function(){
		var smartScales = gantt.config.smart_scales;
		var smartRendering = gantt.config.smart_rendering;
		if(smartScales || smartRendering){
			gantt.config.smart_rendering = false;
			gantt.config.smart_scales = false;
			gantt.render();
		}

		var html = this.$container.parentNode.innerHTML;

		if(smartScales || smartRendering){
			gantt.config.smart_scales = smartScales;
			gantt.config.smart_rendering = smartRendering;
			gantt.render();
		}

		return html;
	};

	gantt._serialize_all = function(){
		gantt.json._copyObject = copy_object_all;
		var data = export_serialize();
		gantt.json._copyObject = original;
		return data;
	};

	gantt._serialize_plain = function(){
		var oldXmlFormat = gantt.templates.xml_format;
		var oldFormatDate = gantt.templates.format_date;
		gantt.templates.xml_format = gantt.date.date_to_str("%Y%m%dT%H%i%s", true);
		gantt.templates.format_date = gantt.date.date_to_str("%Y%m%dT%H%i%s", true);
		gantt.json._copyObject = copy_object_plain;

		var data = export_serialize();

		gantt.templates.xml_format = oldXmlFormat;
		gantt.templates.format_date = oldFormatDate;
		gantt.json._copyObject = original;

		delete data.links;
		return data;
	};

	function get_raw() {
		// support Gantt < 5.0
		if (gantt._scale_helpers) {
			var scales = gantt._get_scales(),
				min_width = gantt.config.min_column_width,
				autosize_min_width = gantt._get_resize_options().x ? Math.max(gantt.config.autosize_min_width, 0) : config.$task.offsetWidth,
				height = config.config.scale_height - 1;
			return gantt._scale_helpers.prepareConfigs(scales, min_width, autosize_min_width, height);
		} else { // Gantt >= 5.0
			var timeline = gantt.$ui.getView("timeline");
			if (timeline) {
				var availWidth = timeline.$config.width;
				if (gantt.config.autosize == "x" || gantt.config.autosize == "xy") {
					availWidth = Math.max(gantt.config.autosize_min_width, 0);
				}
				var state = gantt.getState(),
					scales = timeline._getScales(),
					min_width = gantt.config.min_column_width,
					height = gantt.config.scale_height-1,
					rtl = gantt.config.rtl;
				return timeline.$scaleHelper.prepareConfigs(scales, min_width, availWidth, height, state.min_date, state.max_date, rtl);
			}
		}
	}

	gantt._serialize_table = function(config){
		gantt.json._copyObject = config.visual ? copy_object_colors : copy_object_table;
		var data = export_serialize();
		gantt.json._copyObject = original;

		delete data.links;

		if (config.cellColors){
			var css = this.templates.timeline_cell_class || this.templates.task_cell_class;
			if (css){
				var raw = get_raw();
				var steps = raw[0].trace_x;
				for (var i=1; i<raw.length; i++)
					if (raw[i].trace_x.length > steps.length)
						steps = raw[i].trace_x;

				for (var i=0; i<data.data.length; i++){
					data.data[i].styles = [];
					var task = this.getTask(data.data[i].id);
					for (var j = 0; j < steps.length; j++) {
						var date = steps[j];
						var cell_css = css(task, date);
						if (cell_css)
							data.data[i].styles.push({ index: j, styles: get_styles(cell_css) });
					}
				}
			}
		}
		return data;
	};

	gantt._serialize_scales = function(config){
		var scales = [];
		var raw = get_raw();
		
		var min = Infinity;
		var max = 0;
		for (var i=0; i<raw.length; i++) min = Math.min(min, raw[i].col_width);

		for (var i=0; i<raw.length; i++){
			var start = 0;
			var end = 0;
			var row = [];

			scales.push(row);
			var step = raw[i];
			max = Math.max(max, step.trace_x.length);
			var template = step.format || step.template || (step.date ? gantt.date.date_to_str(step.date) :  gantt.config.date_scale);

			for (var j = 0; j < step.trace_x.length; j++) {
				var date = step.trace_x[j];
				end = start + Math.round(step.width[j]/min);

				var scale_cell = { text: template(date), start: start, end: end };

				if (config.cellColors){
					var css = step.css || this.templates.scale_cell_class;
					if (css){
						var scale_css = css(date);
						if (scale_css)
							scale_cell.styles=get_styles(scale_css);
					}
				}

				row.push(scale_cell);
				start = end;
			}
		}

		return { width:max, height:scales.length, data:scales };
	};

	gantt._serialize_columns = function(config){
		gantt.exportMode = true;

		var columns = [];
		var cols = gantt.config.columns;

		var ccount = 0;
		for (var i = 0; i < cols.length; i++){
			if (cols[i].name == "add" || cols[i].name == "buttons") continue;

			columns[ccount] = {
				id:		((cols[i].template) ? ("_"+i) : cols[i].name),
				header:	cols[i].label || gantt.locale.labels["column_"+cols[i].name],
				width: 	(cols[i].width ? Math.floor(cols[i].width/4) : "")
			};

			if (cols[i].name == "duration")
				columns[ccount].type = "number";
			if (cols[i].name == "start_date" || cols[i].name == "end_date"){
				columns[ccount].type = "date";
				if (config && config.rawDates)
					columns[ccount].id = cols[i].name;
			}

			ccount++;
		}
		
		gantt.exportMode = false;
		return columns;
	};

	function export_serialize(){
		gantt.exportMode = true;
		var data = gantt.serialize();
		gantt.exportMode = false;
		return data;
	}
}

add_export_methods(gantt);
if (window.Gantt && Gantt.plugin)
	Gantt.plugin(add_export_methods);

})();

(function () {
	var apiUrl = "https://export.dhtmlx.com/gantt";

	function set_level(data) {
		for (var i = 0; i < data.length; i++) {
			if (data[i].parent == 0) {
				data[i]._lvl = 1;
			}
			for (var j = i + 1; j < data.length; j++) {
				if (data[i].id == data[j].parent) {
					data[j]._lvl = data[i]._lvl + 1;
				}
			}
		}
	}

	function clear_level(data) {
		for (var i = 0; i < data.length; i++) {
			delete data[i]._lvl
		}
	}

	function clear_rec_links(data) {
		set_level(data.data);
		var tasks = {};
		for (var i = 0; i < data.data.length; i++) {
			tasks[data.data[i].id] = data.data[i];
		}

		var links = {};
		for (i = 0; i < data.links.length; i++) {
			var link = data.links[i];
			if(gantt.isTaskExists(link.source) && gantt.isTaskExists(link.target)){
				links[link.id] = link;
			}
		}

		for (i in links) {
			make_links_same_level(links[i], tasks);
		}

		var skippedLinks = {};
		for (i in tasks) {
			clear_circ_dependencies(tasks[i], links, tasks, {}, skippedLinks, null);
		}

		for (i in links) {
			clear_links_same_level(links, tasks);
		}

		for (i = 0; i < data.links.length; i++) {
			if (!links[data.links[i].id]) {
				data.links.splice(i, 1);
				i--;
			}
		}

		clear_level(data.data);
	}

	function clear_circ_dependencies(task, links, tasks, usedTasks, skippedLinks, prevLink) {
		var sources = task.$_source;
		if (!sources) return;

		if (usedTasks[task.id]) {
			on_circ_dependency_find(prevLink, links, usedTasks, skippedLinks);
		}

		usedTasks[task.id] = true;

		var targets = {};

		for (var i = 0; i < sources.length; i++) {
			if (skippedLinks[sources[i]]) continue;
			var curLink = links[sources[i]];
			var targetTask = tasks[curLink._target];
			if (targets[targetTask.id]) { // two link from one task to another
				on_circ_dependency_find(curLink, links, usedTasks, skippedLinks);
			}
			targets[targetTask.id] = true;
			clear_circ_dependencies(targetTask, links, tasks, usedTasks, skippedLinks, curLink);
		}
		usedTasks[task.id] = false;
	}

	function on_circ_dependency_find(link, links, usedTasks, skippedLinks) {
		if (link) {
			if (gantt.callEvent("onExportCircularDependency", [link.id, link])) {
				delete links[link.id];
			}

			delete usedTasks[link._source];
			delete usedTasks[link._target];
			skippedLinks[link.id] = true;
		}
	}

	function make_links_same_level(link, tasks) {
		var task,
			targetLvl,
			linkT = {
				target: tasks[link.target],
				source: tasks[link.source]
			};

		if (linkT.target._lvl != linkT.source._lvl) {
			if (linkT.target._lvl < linkT.source._lvl) {
				task = "source";
				targetLvl = linkT.target._lvl
			}
			else {
				task = "target";
				targetLvl = linkT.source._lvl;
			}

			do {
				var parent = tasks[linkT[task].parent];
				if (!parent) break;
				linkT[task] = parent;
			} while (linkT[task]._lvl < targetLvl);

			var sourceParent = tasks[linkT.source.parent],
				targetParent = tasks[linkT.target.parent];

			while (sourceParent && targetParent && sourceParent.id != targetParent.id) {
				linkT.source = sourceParent;
				linkT.target = targetParent;
				sourceParent = tasks[linkT.source.parent];
				targetParent = tasks[linkT.target.parent];
			}
		}

		link._target = linkT.target.id;
		link._source = linkT.source.id;

		if (!linkT.target.$_target)
			linkT.target.$_target = [];
		linkT.target.$_target.push(link.id);

		if (!linkT.source.$_source)
			linkT.source.$_source = [];
		linkT.source.$_source.push(link.id);
	}

	function clear_links_same_level(links, tasks) {
		for (var link in links) {
			delete links[link]._target;
			delete links[link]._source;
		}

		for (var task in tasks) {
			delete tasks[task].$_source;
			delete tasks[task].$_target;
		}
	}


	function customProjectProperties(data, config){
		if (config && config.project) {
			for (var i in config.project) {
				if (!gantt.config.$custom_data)
					gantt.config.$custom_data = {};
				gantt.config.$custom_data[i] = typeof config.project[i] == "function" ? config.project[i](gantt.config) : config.project[i];
			}
			delete config.project;
		}
	}

	function customTaskProperties(data, config){
		if (config && config.tasks) {
			data.data.forEach(function (el) {
				for (var i in config.tasks) {
					if (!el.$custom_data)
						el.$custom_data = {};
					el.$custom_data[i] = typeof config.tasks[i] == "function" ? config.tasks[i](el, gantt.config) : config.tasks[i];
				}
			});
			delete config.tasks;
		}
	}

	function exportConfig(data, config){
		var p_name = config.name || 'gantt.xml';
		delete config.name;

		gantt.config.custom = config;
		
		var time = gantt._getWorktimeSettings();
		
		var p_dates = gantt.getSubtaskDates();
		if (p_dates.start_date && p_dates.end_date) {
			var formatDate = gantt.templates.xml_format || gantt.templates.format_date;
			gantt.config.start_end = {
				start_date: formatDate(p_dates.start_date),
				end_date: formatDate(p_dates.end_date)
			};
		}

		var manual = config.auto_scheduling === undefined ? false : !!config.auto_scheduling;

		var res = {
			callback: config.callback || null,
			config: gantt.config,
			data: data,
			manual: manual,
			name: p_name,
			worktime: time
		};
		for(var i in config) res[i] = config[i];
		return res;
	}

	function add_export_methods(gantt) {
		gantt._ms_export = {};

		gantt.exportToMSProject = function (config) {
			config = config || {};
			config.skip_circular_links = config.skip_circular_links === undefined ? true : !!config.skip_circular_links;

			var old_xml_format = this.templates.xml_format;
			var old_format_date = this.templates.format_date;
			this.templates.xml_format = this.date.date_to_str("%d-%m-%Y %H:%i:%s");
			this.templates.format_date = this.date.date_to_str("%d-%m-%Y %H:%i:%s");
			var data = this._serialize_all();

			customProjectProperties(data, config);

			customTaskProperties(data, config);

			if (config.skip_circular_links) {
				clear_rec_links(data);
			}

			config = exportConfig(data, config);

			this._send_to_export(config, config.type || "msproject");
			this.templates.xml_format = old_xml_format;
			this.templates.format_date = old_format_date;
			this.config.$custom_data = null;
			this.config.custom = null;
		};

		gantt.exportToPrimaveraP6 = function(config){
			config.type = "primaveraP6";
			return gantt.exportToMSProject(config);
		};

		function sendImportAjax(config){
			var url = config.server || apiUrl;
			var store = config.store || 0;
			var formData = config.data;
			var callback = config.callback;

			var settings = {};
			if(config.durationUnit) settings.durationUnit = config.durationUnit
			if(config.projectProperties) settings.projectProperties = config.projectProperties;
			if(config.taskProperties) settings.taskProperties = config.taskProperties;

			formData.append("type", config.type || "msproject-parse");
			formData.append("data", JSON.stringify(settings));

			if(store)
				formData.append("store", store);

			var xhr = new XMLHttpRequest();
			xhr.onreadystatechange = function (e) {
				if(xhr.readyState == 4 && xhr.status == 0){// network error
					if(callback){
						callback(null);
					}
				}
			};

			xhr.onload = function() {

				var fail = xhr.status > 400;
				var info = null;

				if (!fail){
					try{
						info = JSON.parse(xhr.responseText);
					}catch(e){}
				}

				if(callback){
					callback(info);
				}

			};

			xhr.open('POST', url, true);
			xhr.setRequestHeader("X-Requested-With", "XMLHttpRequest");
			xhr.send(formData);
		}

		gantt.importFromMSProject = function(config){
			var formData = config.data;

			if(formData instanceof FormData){

			}else if(formData instanceof File){
				var data = new FormData();
				data.append("file", formData);
				config.data = data;
			}
			sendImportAjax(config);
		};

		gantt.importFromPrimaveraP6 = function(config){
			config.type = "primaveraP6-parse";
			return gantt.importFromMSProject(config);
		};
	}

	add_export_methods(gantt);
	if (window.Gantt && Gantt.plugin)
		Gantt.plugin(add_export_methods);

})();