(function($){
	var settings = {}, roots = {}, caches = {},
	//default consts of core
	_consts = {
		className: {
			BUTTON: "button",
			LEVEL: "level",
			ICO_LOADING: "ico_loading",
			SWITCH: "switch",
			NAME: 'node_name'
		},
		event: {
			NODECREATED: "ztree_nodeCreated",
			CLICK: "ztree_click",
			EXPAND: "ztree_expand",
			COLLAPSE: "ztree_collapse",
			ASYNC_SUCCESS: "ztree_async_success",
			ASYNC_ERROR: "ztree_async_error",
			REMOVE: "ztree_remove",
			SELECTED: "ztree_selected",
			UNSELECTED: "ztree_unselected"
		},
		id: {
			A: "_a",
			ICON: "_ico",
			SPAN: "_span",
			SWITCH: "_switch",
			UL: "_ul"
		},
		line: {
			ROOT: "root",
			ROOTS: "roots",
			CENTER: "center",
			BOTTOM: "bottom",
			NOLINE: "noline",
			LINE: "line"
		},
		folder: {
			OPEN: "open",
			CLOSE: "close",
			DOCU: "docu"
		},
		node: {
			CURSELECTED: "curSelectedNode"
		}
	},
	//default setting of core
	_setting = {
		treeId: "",
		treeObj: null,
		view: {
			addDiyDom: null,
			autoCancelSelected: true,
			dblClickExpand: true,
			expandSpeed: "fast",
			fontCss: {},
			nameIsHTML: false,
			selectedMulti: true,
			showIcon: true,
			showLine: true,
			showTitle: true,
			txtSelectedEnable: false
		},
		data: {
			key: {
				children: "children",
				name: "name",
				title: "",
				url: "url",
				icon: "icon"
			},
			simpleData: {
				enable: false,
				idKey: "id",
				pIdKey: "pId",
				rootPId: null
			},
			keep: {
				parent: false,
				leaf: false
			}
		},
		async: {
			enable: false,
			contentType: "application/x-www-form-urlencoded",
			type: "post",
			dataType: "text",
			url: "",
			autoParam: [],
			otherParam: [],
			dataFilter: null
		},
		callback: {
			beforeAsync:null,
			beforeClick:null,
			beforeDblClick:null,
			beforeRightClick:null,
			beforeMouseDown:null,
			beforeMouseUp:null,
			beforeExpand:null,
			beforeCollapse:null,
			beforeRemove:null,

			onAsyncError:null,
			onAsyncSuccess:null,
			onNodeCreated:null,
			onClick:null,
			onDblClick:null,
			onRightClick:null,
			onMouseDown:null,
			onMouseUp:null,
			onExpand:null,
			onCollapse:null,
			onRemove:null
		}
	},
	//default root of core
	//zTree use root to save full data
	_initRoot = function (setting) {
		var r = data.getRoot(setting);
		if (!r) {
			r = {};
			data.setRoot(setting, r);
		}
		r[setting.data.key.children] = [];
		r.expandTriggerFlag = false;
		r.curSelectedList = [];
		r.noSelection = true;
		r.createdNodes = [];
		r.zId = 0;
		r._ver = (new Date()).getTime();
	},
	//default cache of core
	_initCache = function(setting) {
		var c = data.getCache(setting);
		if (!c) {
			c = {};
			data.setCache(setting, c);
		}
		c.nodes = [];
		c.doms = [];
	},
	//default bindEvent of core
	_bindEvent = function(setting) {
		var o = setting.treeObj,
		c = consts.event;
		o.bind(c.NODECREATED, function (event, treeId, node) {
			tools.apply(setting.callback.onNodeCreated, [event, treeId, node]);
		});

		o.bind(c.CLICK, function (event, srcEvent, treeId, node, clickFlag) {
			tools.apply(setting.callback.onClick, [srcEvent, treeId, node, clickFlag]);
		});

		o.bind(c.EXPAND, function (event, treeId, node) {
			tools.apply(setting.callback.onExpand, [event, treeId, node]);
		});

		o.bind(c.COLLAPSE, function (event, treeId, node) {
			tools.apply(setting.callback.onCollapse, [event, treeId, node]);
		});

		o.bind(c.ASYNC_SUCCESS, function (event, treeId, node, msg) {
			tools.apply(setting.callback.onAsyncSuccess, [event, treeId, node, msg]);
		});

		o.bind(c.ASYNC_ERROR, function (event, treeId, node, XMLHttpRequest, textStatus, errorThrown) {
			tools.apply(setting.callback.onAsyncError, [event, treeId, node, XMLHttpRequest, textStatus, errorThrown]);
		});

		o.bind(c.REMOVE, function (event, treeId, treeNode) {
			tools.apply(setting.callback.onRemove, [event, treeId, treeNode]);
		});

		o.bind(c.SELECTED, function (event, treeId, node) {
			tools.apply(setting.callback.onSelected, [treeId, node]);
		});
		o.bind(c.UNSELECTED, function (event, treeId, node) {
			tools.apply(setting.callback.onUnSelected, [treeId, node]);
		});
	},
	_unbindEvent = function(setting) {
		var o = setting.treeObj,
		c = consts.event;
		o.unbind(c.NODECREATED)
		.unbind(c.CLICK)
		.unbind(c.EXPAND)
		.unbind(c.COLLAPSE)
		.unbind(c.ASYNC_SUCCESS)
		.unbind(c.ASYNC_ERROR)
		.unbind(c.REMOVE)
		.unbind(c.SELECTED)
		.unbind(c.UNSELECTED);
	},
	//default event proxy of core
	_eventProxy = function(event) {
		var target = event.target,
		setting = data.getSetting(event.data.treeId),
		tId = "", node = null,
		nodeEventType = "", treeEventType = "",
		nodeEventCallback = null, treeEventCallback = null,
		tmp = null;

		if (tools.eqs(event.type, "mousedown")) {
			treeEventType = "mousedown";
		} else if (tools.eqs(event.type, "mouseup")) {
			treeEventType = "mouseup";
		} else if (tools.eqs(event.type, "contextmenu")) {
			treeEventType = "contextmenu";
		} else if (tools.eqs(event.type, "click")) {
			if (tools.eqs(target.tagName, "span") && target.getAttribute("treeNode"+ consts.id.SWITCH) !== null) {
				tId = tools.getNodeMainDom(target).id;
				nodeEventType = "switchNode";
			} else {
				tmp = tools.getMDom(setting, target, [{tagName:"a", attrName:"treeNode"+consts.id.A}]);
				if (tmp) {
					tId = tools.getNodeMainDom(tmp).id;
					nodeEventType = "clickNode";
				}
			}
		} else if (tools.eqs(event.type, "dblclick")) {
			treeEventType = "dblclick";
			tmp = tools.getMDom(setting, target, [{tagName:"a", attrName:"treeNode"+consts.id.A}]);
			if (tmp) {
				tId = tools.getNodeMainDom(tmp).id;
				nodeEventType = "switchNode";
			}
		}
		if (treeEventType.length > 0 && tId.length == 0) {
			tmp = tools.getMDom(setting, target, [{tagName:"a", attrName:"treeNode"+consts.id.A}]);
			if (tmp) {tId = tools.getNodeMainDom(tmp).id;}
		}
		// event to node
		if (tId.length>0) {
			node = data.getNodeCache(setting, tId);
			switch (nodeEventType) {
				case "switchNode" :
					if (!node.isParent) {
						nodeEventType = "";
					} else if (tools.eqs(event.type, "click")
						|| (tools.eqs(event.type, "dblclick") && tools.apply(setting.view.dblClickExpand, [setting.treeId, node], setting.view.dblClickExpand))) {
						nodeEventCallback = handler.onSwitchNode;
					} else {
						nodeEventType = "";
					}
					break;
				case "clickNode" :
					nodeEventCallback = handler.onClickNode;
					break;
			}
		}
		// event to zTree
		switch (treeEventType) {
			case "mousedown" :
				treeEventCallback = handler.onZTreeMousedown;
				break;
			case "mouseup" :
				treeEventCallback = handler.onZTreeMouseup;
				break;
			case "dblclick" :
				treeEventCallback = handler.onZTreeDblclick;
				break;
			case "contextmenu" :
				treeEventCallback = handler.onZTreeContextmenu;
				break;
		}
		var proxyResult = {
			stop: false,
			node: node,
			nodeEventType: nodeEventType,
			nodeEventCallback: nodeEventCallback,
			treeEventType: treeEventType,
			treeEventCallback: treeEventCallback
		};
		return proxyResult
	},
	//default init node of core
	_initNode = function(setting, level, n, parentNode, isFirstNode, isLastNode, openFlag) {
		if (!n) return;
		var r = data.getRoot(setting),
		childKey = setting.data.key.children;
		n.level = level;
		n.tId = setting.treeId + "_" + (++r.zId);
		n.parentTId = parentNode ? parentNode.tId : null;
		n.open = (typeof n.open == "string") ? tools.eqs(n.open, "true") : !!n.open;
		if (n[childKey] && n[childKey].length > 0) {
			n.isParent = true;
			n.zAsync = true;
		} else {
			n.isParent = (typeof n.isParent == "string") ? tools.eqs(n.isParent, "true") : !!n.isParent;
			n.open = (n.isParent && !setting.async.enable) ? n.open : false;
			n.zAsync = !n.isParent;
		}
		n.isFirstNode = isFirstNode;
		n.isLastNode = isLastNode;
		n.getParentNode = function() {return data.getNodeCache(setting, n.parentTId);};
		n.getPreNode = function() {return data.getPreNode(setting, n);};
		n.getNextNode = function() {return data.getNextNode(setting, n);};
		n.getIndex = function() {return data.getNodeIndex(setting, n);};
		n.getPath = function() {return data.getNodePath(setting, n);};
		n.isAjaxing = false;
		data.fixPIdKeyValue(setting, n);
	},
	_init = {
		bind: [_bindEvent],
		unbind: [_unbindEvent],
		caches: [_initCache],
		nodes: [_initNode],
		proxys: [_eventProxy],
		roots: [_initRoot],
		beforeA: [],
		afterA: [],
		innerBeforeA: [],
		innerAfterA: [],
		zTreeTools: []
	},
	//method of operate data
	data = {
		addNodeCache: function(setting, node) {
			data.getCache(setting).nodes[data.getNodeCacheId(node.tId)] = node;
		},
		getNodeCacheId: function(tId) {
			return tId.substring(tId.lastIndexOf("_")+1);
		},
		addAfterA: function(afterA) {
			_init.afterA.push(afterA);
		},
		addBeforeA: function(beforeA) {
			_init.beforeA.push(beforeA);
		},
		addInnerAfterA: function(innerAfterA) {
			_init.innerAfterA.push(innerAfterA);
		},
		addInnerBeforeA: function(innerBeforeA) {
			_init.innerBeforeA.push(innerBeforeA);
		},
		addInitBind: function(bindEvent) {
			_init.bind.push(bindEvent);
		},
		addInitUnBind: function(unbindEvent) {
			_init.unbind.push(unbindEvent);
		},
		addInitCache: function(initCache) {
			_init.caches.push(initCache);
		},
		addInitNode: function(initNode) {
			_init.nodes.push(initNode);
		},
		addInitProxy: function(initProxy, isFirst) {
			if (!!isFirst) {
				_init.proxys.splice(0,0,initProxy);
			} else {
				_init.proxys.push(initProxy);
			}
		},
		addInitRoot: function(initRoot) {
			_init.roots.push(initRoot);
		},
		addNodesData: function(setting, parentNode, index, nodes) {
			var childKey = setting.data.key.children, params;
			if (!parentNode[childKey]) {
				parentNode[childKey] = [];
				index = -1;
			} else if (index >= parentNode[childKey].length) {
				index = -1;
			}

			if (parentNode[childKey].length > 0 && index === 0) {
				parentNode[childKey][0].isFirstNode = false;
				view.setNodeLineIcos(setting, parentNode[childKey][0]);
			} else if (parentNode[childKey].length > 0 && index < 0) {
				parentNode[childKey][parentNode[childKey].length - 1].isLastNode = false;
				view.setNodeLineIcos(setting, parentNode[childKey][parentNode[childKey].length - 1]);
			}
			parentNode.isParent = true;

			if (index<0) {
				parentNode[childKey] = parentNode[childKey].concat(nodes);
			} else {
				params = [index, 0].concat(nodes);
				parentNode[childKey].splice.apply(parentNode[childKey], params);
			}
		},
		addSelectedNode: function(setting, node) {
			var root = data.getRoot(setting);
			if (!data.isSelectedNode(setting, node)) {
				root.curSelectedList.push(node);
			}
		},
		addCreatedNode: function(setting, node) {
			if (!!setting.callback.onNodeCreated || !!setting.view.addDiyDom) {
				var root = data.getRoot(setting);
				root.createdNodes.push(node);
			}
		},
		addZTreeTools: function(zTreeTools) {
			_init.zTreeTools.push(zTreeTools);
		},
		exSetting: function(s) {
			$.extend(true, _setting, s);
		},
		fixPIdKeyValue: function(setting, node) {
			if (setting.data.simpleData.enable) {
				node[setting.data.simpleData.pIdKey] = node.parentTId ? node.getParentNode()[setting.data.simpleData.idKey] : setting.data.simpleData.rootPId;
			}
		},
		getAfterA: function(setting, node, array) {
			for (var i=0, j=_init.afterA.length; i<j; i++) {
				_init.afterA[i].apply(this, arguments);
			}
		},
		getBeforeA: function(setting, node, array) {
			for (var i=0, j=_init.beforeA.length; i<j; i++) {
				_init.beforeA[i].apply(this, arguments);
			}
		},
		getInnerAfterA: function(setting, node, array) {
			for (var i=0, j=_init.innerAfterA.length; i<j; i++) {
				_init.innerAfterA[i].apply(this, arguments);
			}
		},
		getInnerBeforeA: function(setting, node, array) {
			for (var i=0, j=_init.innerBeforeA.length; i<j; i++) {
				_init.innerBeforeA[i].apply(this, arguments);
			}
		},
		getCache: function(setting) {
			return caches[setting.treeId];
		},
		getNodeIndex: function(setting, node) {
			if (!node) return null;
			var childKey = setting.data.key.children,
			p = node.parentTId ? node.getParentNode() : data.getRoot(setting);
			for (var i=0, l=p[childKey].length-1; i<=l; i++) {
				if (p[childKey][i] === node) {
					return i;
				}
			}
			return -1;
		},
		getNextNode: function(setting, node) {
			if (!node) return null;
			var childKey = setting.data.key.children,
			p = node.parentTId ? node.getParentNode() : data.getRoot(setting);
			for (var i=0, l=p[childKey].length-1; i<=l; i++) {
				if (p[childKey][i] === node) {
					return (i==l ? null : p[childKey][i+1]);
				}
			}
			return null;
		},
		getNodeByParam: function(setting, nodes, key, value) {
			if (!nodes || !key) return null;
			var childKey = setting.data.key.children;
			for (var i = 0, l = nodes.length; i < l; i++) {
				if (nodes[i][key] == value) {
					return nodes[i];
				}
				var tmp = data.getNodeByParam(setting, nodes[i][childKey], key, value);
				if (tmp) return tmp;
			}
			return null;
		},
		getNodeCache: function(setting, tId) {
			if (!tId) return null;
			var n = caches[setting.treeId].nodes[data.getNodeCacheId(tId)];
			return n ? n : null;
		},
		getNodeName: function(setting, node) {
			var nameKey = setting.data.key.name;
			return "" + node[nameKey];
		},
		getNodePath: function(setting, node) {
			if (!node) return null;

			var path;
			if(node.parentTId) {
				path = node.getParentNode().getPath();
			} else {
				path = [];
			}

			if (path) {
				path.push(node);
			}

			return path;
		},
		getNodeTitle: function(setting, node) {
			var t = setting.data.key.title === "" ? setting.data.key.name : setting.data.key.title;
			return "" + node[t];
		},
		getNodes: function(setting) {
			return data.getRoot(setting)[setting.data.key.children];
		},
		getNodesByParam: function(setting, nodes, key, value) {
			if (!nodes || !key) return [];
			var childKey = setting.data.key.children,
			result = [];
			for (var i = 0, l = nodes.length; i < l; i++) {
				if (nodes[i][key] == value) {
					result.push(nodes[i]);
				}
				result = result.concat(data.getNodesByParam(setting, nodes[i][childKey], key, value));
			}
			return result;
		},
		getNodesByParamFuzzy: function(setting, nodes, key, value) {
			if (!nodes || !key) return [];
			var childKey = setting.data.key.children,
			result = [];
			value = value.toLowerCase();
			for (var i = 0, l = nodes.length; i < l; i++) {
				if (typeof nodes[i][key] == "string" && nodes[i][key].toLowerCase().indexOf(value)>-1) {
					result.push(nodes[i]);
				}
				result = result.concat(data.getNodesByParamFuzzy(setting, nodes[i][childKey], key, value));
			}
			return result;
		},
		getNodesByFilter: function(setting, nodes, filter, isSingle, invokeParam) {
			if (!nodes) return (isSingle ? null : []);
			var childKey = setting.data.key.children,
			result = isSingle ? null : [];
			for (var i = 0, l = nodes.length; i < l; i++) {
				if (tools.apply(filter, [nodes[i], invokeParam], false)) {
					if (isSingle) {return nodes[i];}
					result.push(nodes[i]);
				}
				var tmpResult = data.getNodesByFilter(setting, nodes[i][childKey], filter, isSingle, invokeParam);
				if (isSingle && !!tmpResult) {return tmpResult;}
				result = isSingle ? tmpResult : result.concat(tmpResult);
			}
			return result;
		},
		getPreNode: function(setting, node) {
			if (!node) return null;
			var childKey = setting.data.key.children,
			p = node.parentTId ? node.getParentNode() : data.getRoot(setting);
			for (var i=0, l=p[childKey].length; i<l; i++) {
				if (p[childKey][i] === node) {
					return (i==0 ? null : p[childKey][i-1]);
				}
			}
			return null;
		},
		getRoot: function(setting) {
			return setting ? roots[setting.treeId] : null;
		},
		getRoots: function() {
			return roots;
		},
		getSetting: function(treeId) {
			return settings[treeId];
		},
		getSettings: function() {
			return settings;
		},
		getZTreeTools: function(treeId) {
			var r = this.getRoot(this.getSetting(treeId));
			return r ? r.treeTools : null;
		},
		initCache: function(setting) {
			for (var i=0, j=_init.caches.length; i<j; i++) {
				_init.caches[i].apply(this, arguments);
			}
		},
		initNode: function(setting, level, node, parentNode, preNode, nextNode) {
			for (var i=0, j=_init.nodes.length; i<j; i++) {
				_init.nodes[i].apply(this, arguments);
			}
		},
		initRoot: function(setting) {
			for (var i=0, j=_init.roots.length; i<j; i++) {
				_init.roots[i].apply(this, arguments);
			}
		},
		isSelectedNode: function(setting, node) {
			var root = data.getRoot(setting);
			for (var i=0, j=root.curSelectedList.length; i<j; i++) {
				if(node === root.curSelectedList[i]) return true;
			}
			return false;
		},
		removeNodeCache: function(setting, node) {
			var childKey = setting.data.key.children;
			if (node[childKey]) {
				for (var i=0, l=node[childKey].length; i<l; i++) {
					arguments.callee(setting, node[childKey][i]);
				}
			}
			data.getCache(setting).nodes[data.getNodeCacheId(node.tId)] = null;
		},
		removeSelectedNode: function(setting, node) {
			var root = data.getRoot(setting);
			for (var i=0, j=root.curSelectedList.length; i<j; i++) {
				if(node === root.curSelectedList[i] || !data.getNodeCache(setting, root.curSelectedList[i].tId)) {
					root.curSelectedList.splice(i, 1);
					setting.treeObj.trigger(consts.event.UNSELECTED, [setting.treeId, node]);
					i--;j--;
				}
			}
		},
		setCache: function(setting, cache) {
			caches[setting.treeId] = cache;
		},
		setRoot: function(setting, root) {
			roots[setting.treeId] = root;
		},
		setZTreeTools: function(setting, zTreeTools) {
			for (var i=0, j=_init.zTreeTools.length; i<j; i++) {
				_init.zTreeTools[i].apply(this, arguments);
			}
		},
		transformToArrayFormat: function (setting, nodes) {
			if (!nodes) return [];
			var childKey = setting.data.key.children,
			r = [];
			if (tools.isArray(nodes)) {
				for (var i=0, l=nodes.length; i<l; i++) {
					r.push(nodes[i]);
					if (nodes[i][childKey])
						r = r.concat(data.transformToArrayFormat(setting, nodes[i][childKey]));
				}
			} else {
				r.push(nodes);
				if (nodes[childKey])
					r = r.concat(data.transformToArrayFormat(setting, nodes[childKey]));
			}
			return r;
		},
		transformTozTreeFormat: function(setting, sNodes) {
			var i,l,
			key = setting.data.simpleData.idKey,
			parentKey = setting.data.simpleData.pIdKey,
			childKey = setting.data.key.children;
			if (!key || key=="" || !sNodes) return [];

			if (tools.isArray(sNodes)) {
				var r = [];
				var tmpMap = [];
				for (i=0, l=sNodes.length; i<l; i++) {
					tmpMap[sNodes[i][key]] = sNodes[i];
				}
				for (i=0, l=sNodes.length; i<l; i++) {
					if (tmpMap[sNodes[i][parentKey]] && sNodes[i][key] != sNodes[i][parentKey]) {
						if (!tmpMap[sNodes[i][parentKey]][childKey])
							tmpMap[sNodes[i][parentKey]][childKey] = [];
						tmpMap[sNodes[i][parentKey]][childKey].push(sNodes[i]);
					} else {
						r.push(sNodes[i]);
					}
				}
				return r;
			}else {
				return [sNodes];
			}
		}
	},
	//method of event proxy
	event = {
		bindEvent: function(setting) {
			for (var i=0, j=_init.bind.length; i<j; i++) {
				_init.bind[i].apply(this, arguments);
			}
		},
		unbindEvent: function(setting) {
			for (var i=0, j=_init.unbind.length; i<j; i++) {
				_init.unbind[i].apply(this, arguments);
			}
		},
		bindTree: function(setting) {
			var eventParam = {
				treeId: setting.treeId
			},
			o = setting.treeObj;
			if (!setting.view.txtSelectedEnable) {
				// for can't select text
				o.bind('selectstart', handler.onSelectStart).css({
					"-moz-user-select":"-moz-none"
				});
			}
			o.bind('click', eventParam, event.proxy);
			o.bind('dblclick', eventParam, event.proxy);
			o.bind('mouseover', eventParam, event.proxy);
			o.bind('mouseout', eventParam, event.proxy);
			o.bind('mousedown', eventParam, event.proxy);
			o.bind('mouseup', eventParam, event.proxy);
			o.bind('contextmenu', eventParam, event.proxy);
		},
		unbindTree: function(setting) {
			var o = setting.treeObj;
			o.unbind('selectstart', handler.onSelectStart)
				.unbind('click', event.proxy)
				.unbind('dblclick', event.proxy)
				.unbind('mouseover', event.proxy)
				.unbind('mouseout', event.proxy)
				.unbind('mousedown', event.proxy)
				.unbind('mouseup', event.proxy)
				.unbind('contextmenu', event.proxy);
		},
		doProxy: function(e) {
			var results = [];
			for (var i=0, j=_init.proxys.length; i<j; i++) {
				var proxyResult = _init.proxys[i].apply(this, arguments);
				results.push(proxyResult);
				if (proxyResult.stop) {
					break;
				}
			}
			return results;
		},
		proxy: function(e) {
			var setting = data.getSetting(e.data.treeId);
			if (!tools.uCanDo(setting, e)) return true;
			var results = event.doProxy(e),
			r = true, x = false;
			for (var i=0, l=results.length; i<l; i++) {
				var proxyResult = results[i];
				if (proxyResult.nodeEventCallback) {
					x = true;
					r = proxyResult.nodeEventCallback.apply(proxyResult, [e, proxyResult.node]) && r;
				}
				if (proxyResult.treeEventCallback) {
					x = true;
					r = proxyResult.treeEventCallback.apply(proxyResult, [e, proxyResult.node]) && r;
				}
			}
			return r;
		}
	},
	//method of event handler
	handler = {
		onSwitchNode: function (event, node) {
			var setting = data.getSetting(event.data.treeId);
			if (node.open) {
				if (tools.apply(setting.callback.beforeCollapse, [setting.treeId, node], true) == false) return true;
				data.getRoot(setting).expandTriggerFlag = true;
				view.switchNode(setting, node);
			} else {
				if (tools.apply(setting.callback.beforeExpand, [setting.treeId, node], true) == false) return true;
				data.getRoot(setting).expandTriggerFlag = true;
				view.switchNode(setting, node);
			}
			return true;
		},
		onClickNode: function (event, node) {
			var setting = data.getSetting(event.data.treeId),
			clickFlag = ( (setting.view.autoCancelSelected && (event.ctrlKey || event.metaKey)) && data.isSelectedNode(setting, node)) ? 0 : (setting.view.autoCancelSelected && (event.ctrlKey || event.metaKey) && setting.view.selectedMulti) ? 2 : 1;
			if (tools.apply(setting.callback.beforeClick, [setting.treeId, node, clickFlag], true) == false) return true;
			if (clickFlag === 0) {
				view.cancelPreSelectedNode(setting, node);
			} else {
				view.selectNode(setting, node, clickFlag === 2);
			}
			setting.treeObj.trigger(consts.event.CLICK, [event, setting.treeId, node, clickFlag]);
			return true;
		},
		onZTreeMousedown: function(event, node) {
			var setting = data.getSetting(event.data.treeId);
			if (tools.apply(setting.callback.beforeMouseDown, [setting.treeId, node], true)) {
				tools.apply(setting.callback.onMouseDown, [event, setting.treeId, node]);
			}
			return true;
		},
		onZTreeMouseup: function(event, node) {
			var setting = data.getSetting(event.data.treeId);
			if (tools.apply(setting.callback.beforeMouseUp, [setting.treeId, node], true)) {
				tools.apply(setting.callback.onMouseUp, [event, setting.treeId, node]);
			}
			return true;
		},
		onZTreeDblclick: function(event, node) {
			var setting = data.getSetting(event.data.treeId);
			if (tools.apply(setting.callback.beforeDblClick, [setting.treeId, node], true)) {
				tools.apply(setting.callback.onDblClick, [event, setting.treeId, node]);
			}
			return true;
		},
		onZTreeContextmenu: function(event, node) {
			var setting = data.getSetting(event.data.treeId);
			if (tools.apply(setting.callback.beforeRightClick, [setting.treeId, node], true)) {
				tools.apply(setting.callback.onRightClick, [event, setting.treeId, node]);
			}
			return (typeof setting.callback.onRightClick) != "function";
		},
		onSelectStart: function(e){
			var n = e.originalEvent.srcElement.nodeName.toLowerCase();
			return (n === "input" || n === "textarea" );
		}
	},
	//method of tools for zTree
	tools = {
		apply: function(fun, param, defaultValue) {
			if ((typeof fun) == "function") {
				return fun.apply(zt, param?param:[]);
			}
			return defaultValue;
		},
		canAsync: function(setting, node) {
			var childKey = setting.data.key.children;
			return (setting.async.enable && node && node.isParent && !(node.zAsync || (node[childKey] && node[childKey].length > 0)));
		},
		clone: function (obj){
			if (obj === null) return null;
			var o = tools.isArray(obj) ? [] : {};
			for(var i in obj){
				o[i] = (obj[i] instanceof Date) ? new Date(obj[i].getTime()) : (typeof obj[i] === "object" ? arguments.callee(obj[i]) : obj[i]);
			}
			return o;
		},
		eqs: function(str1, str2) {
			return str1.toLowerCase() === str2.toLowerCase();
		},
		isArray: function(arr) {
			return Object.prototype.toString.apply(arr) === "[object Array]";
		},
		$: function(node, exp, setting) {
			if (!!exp && typeof exp != "string") {
				setting = exp;
				exp = "";
			}
			if (typeof node == "string") {
				return $(node, setting ? setting.treeObj.get(0).ownerDocument : null);
			} else {
				return $("#" + node.tId + exp, setting ? setting.treeObj : null);
			}
		},
		getMDom: function (setting, curDom, targetExpr) {
			if (!curDom) return null;
			while (curDom && curDom.id !== setting.treeId) {
				for (var i=0, l=targetExpr.length; curDom.tagName && i<l; i++) {
					if (tools.eqs(curDom.tagName, targetExpr[i].tagName) && curDom.getAttribute(targetExpr[i].attrName) !== null) {
						return curDom;
					}
				}
				curDom = curDom.parentNode;
			}
			return null;
		},
		getNodeMainDom:function(target) {
			return ($(target).parent("li").get(0) || $(target).parentsUntil("li").parent().get(0));
		},
		isChildOrSelf: function(dom, parentId) {
			return ( $(dom).closest("#" + parentId).length> 0 );
		},
		uCanDo: function(setting, e) {
			return true;
		}
	},
	//method of operate ztree dom
	view = {
		addNodes: function(setting, parentNode, index, newNodes, isSilent) {
			if (setting.data.keep.leaf && parentNode && !parentNode.isParent) {
				return;
			}
			if (!tools.isArray(newNodes)) {
				newNodes = [newNodes];
			}
			if (setting.data.simpleData.enable) {
				newNodes = data.transformTozTreeFormat(setting, newNodes);
			}
			if (parentNode) {
				var target_switchObj = $$(parentNode, consts.id.SWITCH, setting),
				target_icoObj = $$(parentNode, consts.id.ICON, setting),
				target_ulObj = $$(parentNode, consts.id.UL, setting);

				if (!parentNode.open) {
					view.replaceSwitchClass(parentNode, target_switchObj, consts.folder.CLOSE);
					view.replaceIcoClass(parentNode, target_icoObj, consts.folder.CLOSE);
					parentNode.open = false;
					target_ulObj.css({
						"display": "none"
					});
				}

				data.addNodesData(setting, parentNode, index, newNodes);
				view.createNodes(setting, parentNode.level + 1, newNodes, parentNode, index);
				if (!isSilent) {
					view.expandCollapseParentNode(setting, parentNode, true);
				}
			} else {
				data.addNodesData(setting, data.getRoot(setting), index, newNodes);
				view.createNodes(setting, 0, newNodes, null, index);
			}
		},
		appendNodes: function(setting, level, nodes, parentNode, index, initFlag, openFlag) {
			if (!nodes) return [];
			var html = [],
			childKey = setting.data.key.children;

			var tmpPNode = (parentNode) ? parentNode: data.getRoot(setting),
				tmpPChild = tmpPNode[childKey],
				isFirstNode, isLastNode;

			if (!tmpPChild || index >= tmpPChild.length) {
				index = -1;
			}

			for (var i = 0, l = nodes.length; i < l; i++) {
				var node = nodes[i];
				if (initFlag) {
					isFirstNode = ((index===0 || tmpPChild.length == nodes.length) && (i == 0));
					isLastNode = (index < 0 && i == (nodes.length - 1));
					data.initNode(setting, level, node, parentNode, isFirstNode, isLastNode, openFlag);
					data.addNodeCache(setting, node);
				}

				var childHtml = [];
				if (node[childKey] && node[childKey].length > 0) {
					//make child html first, because checkType
					childHtml = view.appendNodes(setting, level + 1, node[childKey], node, -1, initFlag, openFlag && node.open);
				}
				if (openFlag) {

					view.makeDOMNodeMainBefore(html, setting, node);
					view.makeDOMNodeLine(html, setting, node);
					data.getBeforeA(setting, node, html);
					view.makeDOMNodeNameBefore(html, setting, node);
					data.getInnerBeforeA(setting, node, html);
					view.makeDOMNodeIcon(html, setting, node);
					data.getInnerAfterA(setting, node, html);
					view.makeDOMNodeNameAfter(html, setting, node);
					data.getAfterA(setting, node, html);
					if (node.isParent && node.open) {
						view.makeUlHtml(setting, node, html, childHtml.join(''));
					}
					view.makeDOMNodeMainAfter(html, setting, node);
					data.addCreatedNode(setting, node);
				}
			}
			return html;
		},
		appendParentULDom: function(setting, node) {
			var html = [],
			nObj = $$(node, setting);
			if (!nObj.get(0) && !!node.parentTId) {
				view.appendParentULDom(setting, node.getParentNode());
				nObj = $$(node, setting);
			}
			var ulObj = $$(node, consts.id.UL, setting);
			if (ulObj.get(0)) {
				ulObj.remove();
			}
			var childKey = setting.data.key.children,
			childHtml = view.appendNodes(setting, node.level+1, node[childKey], node, -1, false, true);
			view.makeUlHtml(setting, node, html, childHtml.join(''));
			nObj.append(html.join(''));
		},
		asyncNode: function(setting, node, isSilent, callback) {
			var i, l;
			if (node && !node.isParent) {
				tools.apply(callback);
				return false;
			} else if (node && node.isAjaxing) {
				return false;
			} else if (tools.apply(setting.callback.beforeAsync, [setting.treeId, node], true) == false) {
				tools.apply(callback);
				return false;
			}
			if (node) {
				node.isAjaxing = true;
				var icoObj = $$(node, consts.id.ICON, setting);
				icoObj.attr({"style":"", "class":consts.className.BUTTON + " " + consts.className.ICO_LOADING});
			}

			var tmpParam = {};
			for (i = 0, l = setting.async.autoParam.length; node && i < l; i++) {
				var pKey = setting.async.autoParam[i].split("="), spKey = pKey;
				if (pKey.length>1) {
					spKey = pKey[1];
					pKey = pKey[0];
				}
				tmpParam[spKey] = node[pKey];
			}
			if (tools.isArray(setting.async.otherParam)) {
				for (i = 0, l = setting.async.otherParam.length; i < l; i += 2) {
					tmpParam[setting.async.otherParam[i]] = setting.async.otherParam[i + 1];
				}
			} else {
				for (var p in setting.async.otherParam) {
					tmpParam[p] = setting.async.otherParam[p];
				}
			}

			var _tmpV = data.getRoot(setting)._ver;
			$.ajax({
				contentType: setting.async.contentType,
                cache: false,
				type: setting.async.type,
				url: tools.apply(setting.async.url, [setting.treeId, node], setting.async.url),
				data: tmpParam,
				dataType: setting.async.dataType,
				success: function(msg) {
					if (_tmpV != data.getRoot(setting)._ver) {
						return;
					}
					var newNodes = [];
					try {
						if (!msg || msg.length == 0) {
							newNodes = [];
						} else if (typeof msg == "string") {
							newNodes = eval("(" + msg + ")");
						} else {
							newNodes = msg;
						}
					} catch(err) {
						newNodes = msg;
					}

					if (node) {
						node.isAjaxing = null;
						node.zAsync = true;
					}
					view.setNodeLineIcos(setting, node);
					if (newNodes && newNodes !== "") {
						newNodes = tools.apply(setting.async.dataFilter, [setting.treeId, node, newNodes], newNodes);
						view.addNodes(setting, node, -1, !!newNodes ? tools.clone(newNodes) : [], !!isSilent);
					} else {
						view.addNodes(setting, node, -1, [], !!isSilent);
					}
					setting.treeObj.trigger(consts.event.ASYNC_SUCCESS, [setting.treeId, node, msg]);
					tools.apply(callback);
				},
				error: function(XMLHttpRequest, textStatus, errorThrown) {
					if (_tmpV != data.getRoot(setting)._ver) {
						return;
					}
					if (node) node.isAjaxing = null;
					view.setNodeLineIcos(setting, node);
					setting.treeObj.trigger(consts.event.ASYNC_ERROR, [setting.treeId, node, XMLHttpRequest, textStatus, errorThrown]);
				}
			});
			return true;
		},
		cancelPreSelectedNode: function (setting, node, excludeNode) {
			var list = data.getRoot(setting).curSelectedList,
				i, n;
			for (i=list.length-1; i>=0; i--) {
				n = list[i];
				if (node === n || (!node && (!excludeNode || excludeNode !== n))) {
					$$(n, consts.id.A, setting).removeClass(consts.node.CURSELECTED);
					if (node) {
						data.removeSelectedNode(setting, node);
						break;
					} else {
						list.splice(i, 1);
						setting.treeObj.trigger(consts.event.UNSELECTED, [setting.treeId, n]);
					}
				}
			}
		},
		createNodeCallback: function(setting) {
			if (!!setting.callback.onNodeCreated || !!setting.view.addDiyDom) {
				var root = data.getRoot(setting);
				while (root.createdNodes.length>0) {
					var node = root.createdNodes.shift();
					tools.apply(setting.view.addDiyDom, [setting.treeId, node]);
					if (!!setting.callback.onNodeCreated) {
						setting.treeObj.trigger(consts.event.NODECREATED, [setting.treeId, node]);
					}
				}
			}
		},
		createNodes: function(setting, level, nodes, parentNode, index) {
			if (!nodes || nodes.length == 0) return;
			var root = data.getRoot(setting),
			childKey = setting.data.key.children,
			openFlag = !parentNode || parentNode.open || !!$$(parentNode[childKey][0], setting).get(0);
			root.createdNodes = [];
			var zTreeHtml = view.appendNodes(setting, level, nodes, parentNode, index, true, openFlag),
				parentObj, nextObj;

			if (!parentNode) {
				parentObj = setting.treeObj;
				//setting.treeObj.append(zTreeHtml.join(''));
			} else {
				var ulObj = $$(parentNode, consts.id.UL, setting);
				if (ulObj.get(0)) {
					parentObj = ulObj;
					//ulObj.append(zTreeHtml.join(''));
				}
			}
			if (parentObj) {
				if (index >= 0) {
					nextObj = parentObj.children()[index];
				}
				if (index >=0 && nextObj) {
					$(nextObj).before(zTreeHtml.join(''));
				} else {
					parentObj.append(zTreeHtml.join(''));
				}
			}

			view.createNodeCallback(setting);
		},
		destroy: function(setting) {
			if (!setting) return;
			data.initCache(setting);
			data.initRoot(setting);
			event.unbindTree(setting);
			event.unbindEvent(setting);
			setting.treeObj.empty();
			delete settings[setting.treeId];
		},
		expandCollapseNode: function(setting, node, expandFlag, animateFlag, callback) {
			var root = data.getRoot(setting),
			childKey = setting.data.key.children;
			if (!node) {
				tools.apply(callback, []);
				return;
			}
			if (root.expandTriggerFlag) {
				var _callback = callback;
				callback = function(){
					if (_callback) _callback();
					if (node.open) {
						setting.treeObj.trigger(consts.event.EXPAND, [setting.treeId, node]);
					} else {
						setting.treeObj.trigger(consts.event.COLLAPSE, [setting.treeId, node]);
					}
				};
				root.expandTriggerFlag = false;
			}
			if (!node.open && node.isParent && ((!$$(node, consts.id.UL, setting).get(0)) || (node[childKey] && node[childKey].length>0 && !$$(node[childKey][0], setting).get(0)))) {
				view.appendParentULDom(setting, node);
				view.createNodeCallback(setting);
			}
			if (node.open == expandFlag) {
				tools.apply(callback, []);
				return;
			}
			var ulObj = $$(node, consts.id.UL, setting),
			switchObj = $$(node, consts.id.SWITCH, setting),
			icoObj = $$(node, consts.id.ICON, setting);

			if (node.isParent) {
				node.open = !node.open;
				if (node.iconOpen && node.iconClose) {
					icoObj.attr("style", view.makeNodeIcoStyle(setting, node));
				}

				if (node.open) {
					view.replaceSwitchClass(node, switchObj, consts.folder.OPEN);
					view.replaceIcoClass(node, icoObj, consts.folder.OPEN);
					if (animateFlag == false || setting.view.expandSpeed == "") {
						ulObj.show();
						tools.apply(callback, []);
					} else {
						if (node[childKey] && node[childKey].length > 0) {
							ulObj.slideDown(setting.view.expandSpeed, callback);
						} else {
							ulObj.show();
							tools.apply(callback, []);
						}
					}
				} else {
					view.replaceSwitchClass(node, switchObj, consts.folder.CLOSE);
					view.replaceIcoClass(node, icoObj, consts.folder.CLOSE);
					if (animateFlag == false || setting.view.expandSpeed == "" || !(node[childKey] && node[childKey].length > 0)) {
						ulObj.hide();
						tools.apply(callback, []);
					} else {
						ulObj.slideUp(setting.view.expandSpeed, callback);
					}
				}
			} else {
				tools.apply(callback, []);
			}
		},
		expandCollapseParentNode: function(setting, node, expandFlag, animateFlag, callback) {
			if (!node) return;
			if (!node.parentTId) {
				view.expandCollapseNode(setting, node, expandFlag, animateFlag, callback);
				return;
			} else {
				view.expandCollapseNode(setting, node, expandFlag, animateFlag);
			}
			if (node.parentTId) {
				view.expandCollapseParentNode(setting, node.getParentNode(), expandFlag, animateFlag, callback);
			}
		},
		expandCollapseSonNode: function(setting, node, expandFlag, animateFlag, callback) {
			var root = data.getRoot(setting),
			childKey = setting.data.key.children,
			treeNodes = (node) ? node[childKey]: root[childKey],
			selfAnimateSign = (node) ? false : animateFlag,
			expandTriggerFlag = data.getRoot(setting).expandTriggerFlag;
			data.getRoot(setting).expandTriggerFlag = false;
			if (treeNodes) {
				for (var i = 0, l = treeNodes.length; i < l; i++) {
					if (treeNodes[i]) view.expandCollapseSonNode(setting, treeNodes[i], expandFlag, selfAnimateSign);
				}
			}
			data.getRoot(setting).expandTriggerFlag = expandTriggerFlag;
			view.expandCollapseNode(setting, node, expandFlag, animateFlag, callback );
		},
		isSelectedNode: function (setting, node) {
			if (!node) {
				return false;
			}
			var list = data.getRoot(setting).curSelectedList,
				i;
			for (i=list.length-1; i>=0; i--) {
				if (node === list[i]) {
					return true;
				}
			}
			return false;
		},
		makeDOMNodeIcon: function(html, setting, node) {
			var nameStr = data.getNodeName(setting, node),
			name = setting.view.nameIsHTML ? nameStr : nameStr.replace(/&/g,'&amp;').replace(/</g,'&lt;').replace(/>/g,'&gt;');
			html.push("<span id='", node.tId, consts.id.ICON,
				"' title='' treeNode", consts.id.ICON," class='", view.makeNodeIcoClass(setting, node),
				"' style='", view.makeNodeIcoStyle(setting, node), "'></span><span id='", node.tId, consts.id.SPAN,
				"' class='", consts.className.NAME,
				"'>",name,"</span>");
		},
		makeDOMNodeLine: function(html, setting, node) {
			html.push("<span id='", node.tId, consts.id.SWITCH,	"' title='' class='", view.makeNodeLineClass(setting, node), "' treeNode", consts.id.SWITCH,"></span>");
		},
		makeDOMNodeMainAfter: function(html, setting, node) {
			html.push("</li>");
		},
		makeDOMNodeMainBefore: function(html, setting, node) {
			html.push("<li id='", node.tId, "' class='", consts.className.LEVEL, node.level,"' tabindex='0' hidefocus='true' treenode>");
		},
		makeDOMNodeNameAfter: function(html, setting, node) {
			html.push("</a>");
		},
		makeDOMNodeNameBefore: function(html, setting, node) {
			var title = data.getNodeTitle(setting, node),
			url = view.makeNodeUrl(setting, node),
			fontcss = view.makeNodeFontCss(setting, node),
			fontStyle = [];
			for (var f in fontcss) {
				fontStyle.push(f, ":", fontcss[f], ";");
			}
			html.push("<a id='", node.tId, consts.id.A, "' class='", consts.className.LEVEL, node.level,"' treeNode", consts.id.A," onclick=\"", (node.click || ''),
				"\" ", ((url != null && url.length > 0) ? "href='" + url + "'" : ""), " target='",view.makeNodeTarget(node),"' style='", fontStyle.join(''),
				"'");
			if (tools.apply(setting.view.showTitle, [setting.treeId, node], setting.view.showTitle) && title) {html.push("title='", title.replace(/'/g,"&#39;").replace(/</g,'&lt;').replace(/>/g,'&gt;'),"'");}
			html.push(">");
		},
		makeNodeFontCss: function(setting, node) {
			var fontCss = tools.apply(setting.view.fontCss, [setting.treeId, node], setting.view.fontCss);
			return (fontCss && ((typeof fontCss) != "function")) ? fontCss : {};
		},
		makeNodeIcoClass: function(setting, node) {
			var icoCss = ["ico"];
			if (!node.isAjaxing) {
				icoCss[0] = (node.iconSkin ? node.iconSkin + "_" : "") + icoCss[0];
				if (node.isParent) {
					icoCss.push(node.open ? consts.folder.OPEN : consts.folder.CLOSE);
				} else {
					icoCss.push(consts.folder.DOCU);
				}
			}
			return consts.className.BUTTON + " " + icoCss.join('_');
		},
		makeNodeIcoStyle: function(setting, node) {
			var icoStyle = [];
			if (!node.isAjaxing) {
				var icon = (node.isParent && node.iconOpen && node.iconClose) ? (node.open ? node.iconOpen : node.iconClose) : node[setting.data.key.icon];
				if (icon) icoStyle.push("background:url(", icon, ") 0 0 no-repeat;");
				if (setting.view.showIcon == false || !tools.apply(setting.view.showIcon, [setting.treeId, node], true)) {
					icoStyle.push("width:0px;height:0px;");
				}
			}
			return icoStyle.join('');
		},
		makeNodeLineClass: function(setting, node) {
			var lineClass = [];
			if (setting.view.showLine) {
				if (node.level == 0 && node.isFirstNode && node.isLastNode) {
					lineClass.push(consts.line.ROOT);
				} else if (node.level == 0 && node.isFirstNode) {
					lineClass.push(consts.line.ROOTS);
				} else if (node.isLastNode) {
					lineClass.push(consts.line.BOTTOM);
				} else {
					lineClass.push(consts.line.CENTER);
				}
			} else {
				lineClass.push(consts.line.NOLINE);
			}
			if (node.isParent) {
				lineClass.push(node.open ? consts.folder.OPEN : consts.folder.CLOSE);
			} else {
				lineClass.push(consts.folder.DOCU);
			}
			return view.makeNodeLineClassEx(node) + lineClass.join('_');
		},
		makeNodeLineClassEx: function(node) {
			return consts.className.BUTTON + " " + consts.className.LEVEL + node.level + " " + consts.className.SWITCH + " ";
		},
		makeNodeTarget: function(node) {
			return (node.target || "_blank");
		},
		makeNodeUrl: function(setting, node) {
			var urlKey = setting.data.key.url;
			return node[urlKey] ? node[urlKey] : null;
		},
		makeUlHtml: function(setting, node, html, content) {
			html.push("<ul id='", node.tId, consts.id.UL, "' class='", consts.className.LEVEL, node.level, " ", view.makeUlLineClass(setting, node), "' style='display:", (node.open ? "block": "none"),"'>");
			html.push(content);
			html.push("</ul>");
		},
		makeUlLineClass: function(setting, node) {
			return ((setting.view.showLine && !node.isLastNode) ? consts.line.LINE : "");
		},
		removeChildNodes: function(setting, node) {
			if (!node) return;
			var childKey = setting.data.key.children,
			nodes = node[childKey];
			if (!nodes) return;

			for (var i = 0, l = nodes.length; i < l; i++) {
				data.removeNodeCache(setting, nodes[i]);
			}
			data.removeSelectedNode(setting);
			delete node[childKey];

			if (!setting.data.keep.parent) {
				node.isParent = false;
				node.open = false;
				var tmp_switchObj = $$(node, consts.id.SWITCH, setting),
				tmp_icoObj = $$(node, consts.id.ICON, setting);
				view.replaceSwitchClass(node, tmp_switchObj, consts.folder.DOCU);
				view.replaceIcoClass(node, tmp_icoObj, consts.folder.DOCU);
				$$(node, consts.id.UL, setting).remove();
			} else {
				$$(node, consts.id.UL, setting).empty();
			}
		},
		setFirstNode: function(setting, parentNode) {
			var childKey = setting.data.key.children, childLength = parentNode[childKey].length;
			if ( childLength > 0) {
				parentNode[childKey][0].isFirstNode = true;
			}
		},
		setLastNode: function(setting, parentNode) {
			var childKey = setting.data.key.children, childLength = parentNode[childKey].length;
			if ( childLength > 0) {
				parentNode[childKey][childLength - 1].isLastNode = true;
			}
		},
		removeNode: function(setting, node) {
			var root = data.getRoot(setting),
			childKey = setting.data.key.children,
			parentNode = (node.parentTId) ? node.getParentNode() : root;

			node.isFirstNode = false;
			node.isLastNode = false;
			node.getPreNode = function() {return null;};
			node.getNextNode = function() {return null;};

			if (!data.getNodeCache(setting, node.tId)) {
				return;
			}

			$$(node, setting).remove();
			data.removeNodeCache(setting, node);
			data.removeSelectedNode(setting, node);

			for (var i = 0, l = parentNode[childKey].length; i < l; i++) {
				if (parentNode[childKey][i].tId == node.tId) {
					parentNode[childKey].splice(i, 1);
					break;
				}
			}
			view.setFirstNode(setting, parentNode);
			view.setLastNode(setting, parentNode);

			var tmp_ulObj,tmp_switchObj,tmp_icoObj,
			childLength = parentNode[childKey].length;

			//repair nodes old parent
			if (!setting.data.keep.parent && childLength == 0) {
				//old parentNode has no child nodes
				parentNode.isParent = false;
				parentNode.open = false;
				tmp_ulObj = $$(parentNode, consts.id.UL, setting);
				tmp_switchObj = $$(parentNode, consts.id.SWITCH, setting);
				tmp_icoObj = $$(parentNode, consts.id.ICON, setting);
				view.replaceSwitchClass(parentNode, tmp_switchObj, consts.folder.DOCU);
				view.replaceIcoClass(parentNode, tmp_icoObj, consts.folder.DOCU);
				tmp_ulObj.css("display", "none");

			} else if (setting.view.showLine && childLength > 0) {
				//old parentNode has child nodes
				var newLast = parentNode[childKey][childLength - 1];
				tmp_ulObj = $$(newLast, consts.id.UL, setting);
				tmp_switchObj = $$(newLast, consts.id.SWITCH, setting);
				tmp_icoObj = $$(newLast, consts.id.ICON, setting);
				if (parentNode == root) {
					if (parentNode[childKey].length == 1) {
						//node was root, and ztree has only one root after move node
						view.replaceSwitchClass(newLast, tmp_switchObj, consts.line.ROOT);
					} else {
						var tmp_first_switchObj = $$(parentNode[childKey][0], consts.id.SWITCH, setting);
						view.replaceSwitchClass(parentNode[childKey][0], tmp_first_switchObj, consts.line.ROOTS);
						view.replaceSwitchClass(newLast, tmp_switchObj, consts.line.BOTTOM);
					}
				} else {
					view.replaceSwitchClass(newLast, tmp_switchObj, consts.line.BOTTOM);
				}
				tmp_ulObj.removeClass(consts.line.LINE);
			}
		},
		replaceIcoClass: function(node, obj, newName) {
			if (!obj || node.isAjaxing) return;
			var tmpName = obj.attr("class");
			if (tmpName == undefined) return;
			var tmpList = tmpName.split("_");
			switch (newName) {
				case consts.folder.OPEN:
				case consts.folder.CLOSE:
				case consts.folder.DOCU:
					tmpList[tmpList.length-1] = newName;
					break;
			}
			obj.attr("class", tmpList.join("_"));
		},
		replaceSwitchClass: function(node, obj, newName) {
			if (!obj) return;
			var tmpName = obj.attr("class");
			if (tmpName == undefined) return;
			var tmpList = tmpName.split("_");
			switch (newName) {
				case consts.line.ROOT:
				case consts.line.ROOTS:
				case consts.line.CENTER:
				case consts.line.BOTTOM:
				case consts.line.NOLINE:
					tmpList[0] = view.makeNodeLineClassEx(node) + newName;
					break;
				case consts.folder.OPEN:
				case consts.folder.CLOSE:
				case consts.folder.DOCU:
					tmpList[1] = newName;
					break;
			}
			obj.attr("class", tmpList.join("_"));
			if (newName !== consts.folder.DOCU) {
				obj.removeAttr("disabled");
			} else {
				obj.attr("disabled", "disabled");
			}
		},
		selectNode: function(setting, node, addFlag) {
			if (!addFlag) {
				view.cancelPreSelectedNode(setting, null, node);
			}
			$$(node, consts.id.A, setting).addClass(consts.node.CURSELECTED);
			data.addSelectedNode(setting, node);
			setting.treeObj.trigger(consts.event.SELECTED, [setting.treeId, node]);
		},
		setNodeFontCss: function(setting, treeNode) {
			var aObj = $$(treeNode, consts.id.A, setting),
			fontCss = view.makeNodeFontCss(setting, treeNode);
			if (fontCss) {
				aObj.css(fontCss);
			}
		},
		setNodeLineIcos: function(setting, node) {
			if (!node) return;
			var switchObj = $$(node, consts.id.SWITCH, setting),
			ulObj = $$(node, consts.id.UL, setting),
			icoObj = $$(node, consts.id.ICON, setting),
			ulLine = view.makeUlLineClass(setting, node);
			if (ulLine.length==0) {
				ulObj.removeClass(consts.line.LINE);
			} else {
				ulObj.addClass(ulLine);
			}
			switchObj.attr("class", view.makeNodeLineClass(setting, node));
			if (node.isParent) {
				switchObj.removeAttr("disabled");
			} else {
				switchObj.attr("disabled", "disabled");
			}
			icoObj.removeAttr("style");
			icoObj.attr("style", view.makeNodeIcoStyle(setting, node));
			icoObj.attr("class", view.makeNodeIcoClass(setting, node));
		},
		setNodeName: function(setting, node) {
			var title = data.getNodeTitle(setting, node),
			nObj = $$(node, consts.id.SPAN, setting);
			nObj.empty();
			if (setting.view.nameIsHTML) {
				nObj.html(data.getNodeName(setting, node));
			} else {
				nObj.text(data.getNodeName(setting, node));
			}
			if (tools.apply(setting.view.showTitle, [setting.treeId, node], setting.view.showTitle)) {
				var aObj = $$(node, consts.id.A, setting);
				aObj.attr("title", !title ? "" : title);
			}
		},
		setNodeTarget: function(setting, node) {
			var aObj = $$(node, consts.id.A, setting);
			aObj.attr("target", view.makeNodeTarget(node));
		},
		setNodeUrl: function(setting, node) {
			var aObj = $$(node, consts.id.A, setting),
			url = view.makeNodeUrl(setting, node);
			if (url == null || url.length == 0) {
				aObj.removeAttr("href");
			} else {
				aObj.attr("href", url);
			}
		},
		switchNode: function(setting, node) {
			if (node.open || !tools.canAsync(setting, node)) {
				view.expandCollapseNode(setting, node, !node.open);
			} else if (setting.async.enable) {
				if (!view.asyncNode(setting, node)) {
					view.expandCollapseNode(setting, node, !node.open);
					return;
				}
			} else if (node) {
				view.expandCollapseNode(setting, node, !node.open);
			}
		}
	};
	// zTree defind
	$.fn.zTree = {
		consts : _consts,
		_z : {
			tools: tools,
			view: view,
			event: event,
			data: data
		},
		getZTreeObj: function(treeId) {
			var o = data.getZTreeTools(treeId);
			return o ? o : null;
		},
		destroy: function(treeId) {
			if (!!treeId && treeId.length > 0) {
				view.destroy(data.getSetting(treeId));
			} else {
				for(var s in settings) {
					view.destroy(settings[s]);
				}
			}
		},
		init: function(obj, zSetting, zNodes) {
			var setting = tools.clone(_setting);
			$.extend(true, setting, zSetting);
			setting.treeId = obj.attr("id");
			setting.treeObj = obj;
			setting.treeObj.empty();
			settings[setting.treeId] = setting;
			//For some older browser,(e.g., ie6)
			if(typeof document.body.style.maxHeight === "undefined") {
				setting.view.expandSpeed = "";
			}
			data.initRoot(setting);
			var root = data.getRoot(setting),
			childKey = setting.data.key.children;
			zNodes = zNodes ? tools.clone(tools.isArray(zNodes)? zNodes : [zNodes]) : [];
			if (setting.data.simpleData.enable) {
				root[childKey] = data.transformTozTreeFormat(setting, zNodes);
			} else {
				root[childKey] = zNodes;
			}

			data.initCache(setting);
			event.unbindTree(setting);
			event.bindTree(setting);
			event.unbindEvent(setting);
			event.bindEvent(setting);

			var zTreeTools = {
				setting : setting,
				addNodes : function(parentNode, index, newNodes, isSilent) {
					if (!parentNode) parentNode = null;
					if (parentNode && !parentNode.isParent && setting.data.keep.leaf) return null;

					var i = parseInt(index, 10);
					if (isNaN(i)) {
						isSilent = !!newNodes;
						newNodes = index;
						index = -1;
					} else {
						index = i;
					}
					if (!newNodes) return null;


					var xNewNodes = tools.clone(tools.isArray(newNodes)? newNodes: [newNodes]);
					function addCallback() {
						view.addNodes(setting, parentNode, index, xNewNodes, (isSilent==true));
					}

					if (tools.canAsync(setting, parentNode)) {
						view.asyncNode(setting, parentNode, isSilent, addCallback);
					} else {
						addCallback();
					}
					return xNewNodes;
				},
				cancelSelectedNode : function(node) {
					view.cancelPreSelectedNode(setting, node);
				},
				destroy : function() {
					view.destroy(setting);
				},
				expandAll : function(expandFlag) {
					expandFlag = !!expandFlag;
					view.expandCollapseSonNode(setting, null, expandFlag, true);
					return expandFlag;
				},
				expandNode : function(node, expandFlag, sonSign, focus, callbackFlag) {
					if (!node || !node.isParent) return null;
					if (expandFlag !== true && expandFlag !== false) {
						expandFlag = !node.open;
					}
					callbackFlag = !!callbackFlag;

					if (callbackFlag && expandFlag && (tools.apply(setting.callback.beforeExpand, [setting.treeId, node], true) == false)) {
						return null;
					} else if (callbackFlag && !expandFlag && (tools.apply(setting.callback.beforeCollapse, [setting.treeId, node], true) == false)) {
						return null;
					}
					if (expandFlag && node.parentTId) {
						view.expandCollapseParentNode(setting, node.getParentNode(), expandFlag, false);
					}
					if (expandFlag === node.open && !sonSign) {
						return null;
					}

					data.getRoot(setting).expandTriggerFlag = callbackFlag;
					if (!tools.canAsync(setting, node) && sonSign) {
						view.expandCollapseSonNode(setting, node, expandFlag, true, showNodeFocus);
					} else {
						node.open = !expandFlag;
						view.switchNode(this.setting, node);
						showNodeFocus();
					}
					return expandFlag;

					function showNodeFocus() {
						var a = $$(node, setting).get(0);
						if (a && focus !== false) {
							if (a.scrollIntoView) {
								a.scrollIntoView(false);
							} else {
								try{a.focus().blur();}catch(e){}
							}
						}
					}
				},
				getNodes : function() {
					return data.getNodes(setting);
				},
				getNodeByParam : function(key, value, parentNode) {
					if (!key) return null;
					return data.getNodeByParam(setting, parentNode?parentNode[setting.data.key.children]:data.getNodes(setting), key, value);
				},
				getNodeByTId : function(tId) {
					return data.getNodeCache(setting, tId);
				},
				getNodesByParam : function(key, value, parentNode) {
					if (!key) return null;
					return data.getNodesByParam(setting, parentNode?parentNode[setting.data.key.children]:data.getNodes(setting), key, value);
				},
				getNodesByParamFuzzy : function(key, value, parentNode) {
					if (!key) return null;
					return data.getNodesByParamFuzzy(setting, parentNode?parentNode[setting.data.key.children]:data.getNodes(setting), key, value);
				},
				getNodesByFilter: function(filter, isSingle, parentNode, invokeParam) {
					isSingle = !!isSingle;
					if (!filter || (typeof filter != "function")) return (isSingle ? null : []);
					return data.getNodesByFilter(setting, parentNode?parentNode[setting.data.key.children]:data.getNodes(setting), filter, isSingle, invokeParam);
				},
				getNodeIndex : function(node) {
					if (!node) return null;
					var childKey = setting.data.key.children,
					parentNode = (node.parentTId) ? node.getParentNode() : data.getRoot(setting);
					for (var i=0, l = parentNode[childKey].length; i < l; i++) {
						if (parentNode[childKey][i] == node) return i;
					}
					return -1;
				},
				getSelectedNodes : function() {
					var r = [], list = data.getRoot(setting).curSelectedList;
					for (var i=0, l=list.length; i<l; i++) {
						r.push(list[i]);
					}
					return r;
				},
				isSelectedNode : function(node) {
					return data.isSelectedNode(setting, node);
				},
				reAsyncChildNodes : function(parentNode, reloadType, isSilent) {
					if (!this.setting.async.enable) return;
					var isRoot = !parentNode;
					if (isRoot) {
						parentNode = data.getRoot(setting);
					}
					if (reloadType=="refresh") {
						var childKey = this.setting.data.key.children;
						for (var i = 0, l = parentNode[childKey] ? parentNode[childKey].length : 0; i < l; i++) {
							data.removeNodeCache(setting, parentNode[childKey][i]);
						}
						data.removeSelectedNode(setting);
						parentNode[childKey] = [];
						if (isRoot) {
							this.setting.treeObj.empty();
						} else {
							var ulObj = $$(parentNode, consts.id.UL, setting);
							ulObj.empty();
						}
					}
					view.asyncNode(this.setting, isRoot? null:parentNode, !!isSilent);
				},
				refresh : function() {
					this.setting.treeObj.empty();
					var root = data.getRoot(setting),
					nodes = root[setting.data.key.children]
					data.initRoot(setting);
					root[setting.data.key.children] = nodes
					data.initCache(setting);
					view.createNodes(setting, 0, root[setting.data.key.children], null, -1);
				},
				removeChildNodes : function(node) {
					if (!node) return null;
					var childKey = setting.data.key.children,
					nodes = node[childKey];
					view.removeChildNodes(setting, node);
					return nodes ? nodes : null;
				},
				removeNode : function(node, callbackFlag) {
					if (!node) return;
					callbackFlag = !!callbackFlag;
					if (callbackFlag && tools.apply(setting.callback.beforeRemove, [setting.treeId, node], true) == false) return;
					view.removeNode(setting, node);
					if (callbackFlag) {
						this.setting.treeObj.trigger(consts.event.REMOVE, [setting.treeId, node]);
					}
				},
				selectNode : function(node, addFlag) {
					if (!node) return;
					if (tools.uCanDo(setting)) {
						addFlag = setting.view.selectedMulti && addFlag;
						if (node.parentTId) {
							view.expandCollapseParentNode(setting, node.getParentNode(), true, false, showNodeFocus);
						} else {
							try{$$(node, setting).focus().blur();}catch(e){}
						}
						view.selectNode(setting, node, addFlag);
					}

					function showNodeFocus() {
						var a = $$(node, setting).get(0);
						if (a) {
							if (a.scrollIntoView) {
								a.scrollIntoView(false);
							} else {
								try{a.focus().blur();}catch(e){}
							}
						}
					}
				},
				transformTozTreeNodes : function(simpleNodes) {
					return data.transformTozTreeFormat(setting, simpleNodes);
				},
				transformToArray : function(nodes) {
					return data.transformToArrayFormat(setting, nodes);
				},
				updateNode : function(node, checkTypeFlag) {
					if (!node) return;
					var nObj = $$(node, setting);
					if (nObj.get(0) && tools.uCanDo(setting)) {
						view.setNodeName(setting, node);
						view.setNodeTarget(setting, node);
						view.setNodeUrl(setting, node);
						view.setNodeLineIcos(setting, node);
						view.setNodeFontCss(setting, node);
					}
				}
			}
			root.treeTools = zTreeTools;
			data.setZTreeTools(setting, zTreeTools);

			if (root[childKey] && root[childKey].length > 0) {
				view.createNodes(setting, 0, root[childKey], null, -1);
			} else if (setting.async.enable && setting.async.url && setting.async.url !== '') {
				view.asyncNode(setting);
			}
			return zTreeTools;
		}
	};

	var zt = $.fn.zTree,
	$$ = tools.$,
	consts = zt.consts;
})(jQuery);