diff --git a/README.md b/README.md
index 938b4f9adbdc98b72d6cbef499dc49a3636bdca1..24514b2958f8a708bf10de22267c2bfdd86d2c89 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,6 @@
 jQuery Tree Plugin ---- zTree  
 ============
-last verson :  3.5.26
+last verson :  3.5.27
 
 
 **Donate to zTree** : http://www.treejs.cn/v3/donate.php
diff --git a/api/API_cn.html b/api/API_cn.html
index 60ae913567014448cbd44a84a61629df827546f9..2bd4d1b145c6dbaca24f01e2a6fd9eb788ae8f5e 100644
--- a/api/API_cn.html
+++ b/api/API_cn.html
@@ -35,7 +35,7 @@
 				<div class="ieSuggest">浏览本网站建议您使用 Chrome、FireFox、Opera、IE9 等浏览器（只要不是 IE6 7 8 就行）, 速度会更快，画面会更炫！</div>
 				<div class="google_plus"><g:plusone></g:plusone></div>
 				<div class="header-text">
-					<h1><em>zTree v3.5.26 API 文档</em></h1><p></p>
+					<h1><em>zTree v3.5.27 API 文档</em></h1><p></p>
 					<p>all.js = core + excheck + exedit ( 不包括 exhide ); 发现错误请及时通知，谢谢。</p>
 				</div>
 				<ul class="shortcuts language" style="top:0;">
diff --git a/api/API_en.html b/api/API_en.html
index 5045b97f8b2a58ae6c89d8d8779107023cd42a2b..76f231054f71e17f153770e5b185c12e0946770e 100644
--- a/api/API_en.html
+++ b/api/API_en.html
@@ -34,7 +34,7 @@
 				<div class="ieSuggest">If you use the Chrome / FireFox / Opera / IE9 browser will be even more dazzling effect!</div>
 				<div class="google_plus"><g:plusone></g:plusone></div>
 				<div class="header-text">
-					<h1><em>zTree v3.5.26 API Document</em></h1><p></p>
+					<h1><em>zTree v3.5.27 API Document</em></h1><p></p>
 					<p>all.js = core + excheck + exedit ( without exhide ); if you found some mistakes please contact me.</p>
 				</div>
 				<ul class="shortcuts language" style="top:0;">
diff --git a/api/apiCss/jquery.ztree.core.js b/api/apiCss/jquery.ztree.core.js
index b46d607bfdb5fc8c0fb82910759b03687c2f2f25..8adb38e53096bebc4d35accf38a011cfc1648dc8 100644
--- a/api/apiCss/jquery.ztree.core.js
+++ b/api/apiCss/jquery.ztree.core.js
@@ -1,5 +1,5 @@
 /*
- * JQuery zTree core v3.5.26
+ * JQuery zTree core v3.5.27
  * http://treejs.cn/
  *
  * Copyright (c) 2010 Hunter.z
@@ -8,7 +8,7 @@
  * http://www.opensource.org/licenses/mit-license.php
  *
  * email: hunter.z@263.net
- * Date: 2016-11-03
+ * Date: 2016-12-27
  */
 (function(q){var H,I,J,K,L,M,u,r={},v={},w={},N={treeId:"",treeObj:null,view:{addDiyDom:null,autoCancelSelected:!0,dblClickExpand:!0,expandSpeed:"fast",fontCss:{},nameIsHTML:!1,selectedMulti:!0,showIcon:!0,showLine:!0,showTitle:!0,txtSelectedEnable:!1},data:{key:{children:"children",name:"name",title:"",url:"url",icon:"icon"},simpleData:{enable:!1,idKey:"id",pIdKey:"pId",rootPId:null},keep:{parent:!1,leaf:!1}},async:{enable:!1,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}},x=[function(b){var a=b.treeObj,c=f.event;a.bind(c.NODECREATED,function(a,c,g){j.apply(b.callback.onNodeCreated,
@@ -37,7 +37,7 @@ j.apply(c.callback.beforeMouseUp,[c.treeId,a],!0)&&j.apply(c.callback.onMouseUp,
 return b==="input"||b==="textarea"};var j={apply:function(b,a,c){return typeof b=="function"?b.apply(O,a?a:[]):c},canAsync:function(b,a){var c=b.data.key.children;return b.async.enable&&a&&a.isParent&&!(a.zAsync||a[c]&&a[c].length>0)},clone:function(b){if(b===null)return null;var a=j.isArray(b)?[]:{},c;for(c in b)a[c]=b[c]instanceof Date?new Date(b[c].getTime()):typeof b[c]==="object"?j.clone(b[c]):b[c];return a},eqs:function(b,a){return b.toLowerCase()===a.toLowerCase()},isArray:function(b){return Object.prototype.toString.apply(b)===
 "[object Array]"},$:function(b,a,c){a&&typeof a!="string"&&(c=a,a="");return typeof b=="string"?q(b,c?c.treeObj.get(0).ownerDocument:null):q("#"+b.tId+a,c?c.treeObj:null)},getMDom:function(b,a,c){if(!a)return null;for(;a&&a.id!==b.treeId;){for(var d=0,e=c.length;a.tagName&&d<e;d++)if(j.eqs(a.tagName,c[d].tagName)&&a.getAttribute(c[d].attrName)!==null)return a;a=a.parentNode}return null},getNodeMainDom:function(b){return q(b).parent("li").get(0)||q(b).parentsUntil("li").parent().get(0)},isChildOrSelf:function(b,
 a){return q(b).closest("#"+a).length>0},uCanDo:function(){return!0}},i={addNodes:function(b,a,c,d,e){if(!b.data.keep.leaf||!a||a.isParent)if(j.isArray(d)||(d=[d]),b.data.simpleData.enable&&(d=h.transformTozTreeFormat(b,d)),a){var g=k(a,f.id.SWITCH,b),l=k(a,f.id.ICON,b),p=k(a,f.id.UL,b);if(!a.open)i.replaceSwitchClass(a,g,f.folder.CLOSE),i.replaceIcoClass(a,l,f.folder.CLOSE),a.open=!1,p.css({display:"none"});h.addNodesData(b,a,c,d);i.createNodes(b,a.level+1,d,a,c);e||i.expandCollapseParentNode(b,a,
-!0)}else h.addNodesData(b,h.getRoot(b),c,d),i.createNodes(b,0,d,null,c)},appendNodes:function(b,a,c,d,e,g,f){if(!c)return[];var j=[],n=b.data.key.children,k=(d?d:h.getRoot(b))[n],m,Q;if(!k||e>=k.length)e=-1;for(var s=0,R=c.length;s<R;s++){var o=c[s];g&&(m=(e===0||k.length==c.length)&&s==0,Q=e<0&&s==c.length-1,h.initNode(b,a,o,d,m,Q,f),h.addNodeCache(b,o));m=[];o[n]&&o[n].length>0&&(m=i.appendNodes(b,a+1,o[n],o,-1,g,f&&o.open));f&&(i.makeDOMNodeMainBefore(j,b,o),i.makeDOMNodeLine(j,b,o),h.getBeforeA(b,
+!0)}else h.addNodesData(b,h.getRoot(b),c,d),i.createNodes(b,0,d,null,c)},appendNodes:function(b,a,c,d,e,g,f){if(!c)return[];var j=[],n=b.data.key.children,k=(d?d:h.getRoot(b))[n],m,Q;if(!k||e>=k.length-c.length)e=-1;for(var s=0,R=c.length;s<R;s++){var o=c[s];g&&(m=(e===0||k.length==c.length)&&s==0,Q=e<0&&s==c.length-1,h.initNode(b,a,o,d,m,Q,f),h.addNodeCache(b,o));m=[];o[n]&&o[n].length>0&&(m=i.appendNodes(b,a+1,o[n],o,-1,g,f&&o.open));f&&(i.makeDOMNodeMainBefore(j,b,o),i.makeDOMNodeLine(j,b,o),h.getBeforeA(b,
 o,j),i.makeDOMNodeNameBefore(j,b,o),h.getInnerBeforeA(b,o,j),i.makeDOMNodeIcon(j,b,o),h.getInnerAfterA(b,o,j),i.makeDOMNodeNameAfter(j,b,o),h.getAfterA(b,o,j),o.isParent&&o.open&&i.makeUlHtml(b,o,j,m.join("")),i.makeDOMNodeMainAfter(j,b,o),h.addCreatedNode(b,o))}return j},appendParentULDom:function(b,a){var c=[],d=k(a,b);!d.get(0)&&a.parentTId&&(i.appendParentULDom(b,a.getParentNode()),d=k(a,b));var e=k(a,f.id.UL,b);e.get(0)&&e.remove();e=i.appendNodes(b,a.level+1,a[b.data.key.children],a,-1,!1,!0);
 i.makeUlHtml(b,a,c,e.join(""));d.append(c.join(""))},asyncNode:function(b,a,c,d){var e,g;if(a&&!a.isParent)return j.apply(d),!1;else if(a&&a.isAjaxing)return!1;else if(j.apply(b.callback.beforeAsync,[b.treeId,a],!0)==!1)return j.apply(d),!1;if(a)a.isAjaxing=!0,k(a,f.id.ICON,b).attr({style:"","class":f.className.BUTTON+" "+f.className.ICO_LOADING});var l={};for(e=0,g=b.async.autoParam.length;a&&e<g;e++){var p=b.async.autoParam[e].split("="),n=p;p.length>1&&(n=p[1],p=p[0]);l[n]=a[p]}if(j.isArray(b.async.otherParam))for(e=
 0,g=b.async.otherParam.length;e<g;e+=2)l[b.async.otherParam[e]]=b.async.otherParam[e+1];else for(var m in b.async.otherParam)l[m]=b.async.otherParam[m];var P=h.getRoot(b)._ver;q.ajax({contentType:b.async.contentType,cache:!1,type:b.async.type,url:j.apply(b.async.url,[b.treeId,a],b.async.url),data:b.async.contentType.indexOf("application/json")>-1?JSON.stringify(l):l,dataType:b.async.dataType,success:function(e){if(P==h.getRoot(b)._ver){var g=[];try{g=!e||e.length==0?[]:typeof e=="string"?eval("("+
diff --git a/js/jquery.ztree.all.js b/js/jquery.ztree.all.js
index 04a2d75c7e6eb3810997b21956e40ab84b4e3130..2608dbddf421b193954e212f76c6e9443ad854aa 100644
--- a/js/jquery.ztree.all.js
+++ b/js/jquery.ztree.all.js
@@ -1,6 +1,6 @@
 
 /*
- * JQuery zTree core v3.5.26
+ * JQuery zTree core v3.5.27
  * http://treejs.cn/
  *
  * Copyright (c) 2010 Hunter.z
@@ -9,7 +9,7 @@
  * http://www.opensource.org/licenses/mit-license.php
  *
  * email: hunter.z@263.net
- * Date: 2016-11-03
+ * Date: 2016-12-27
  */
 (function($){
 	var settings = {}, roots = {}, caches = {},
@@ -906,7 +906,7 @@
 				tmpPChild = tmpPNode[childKey],
 				isFirstNode, isLastNode;
 
-			if (!tmpPChild || index >= tmpPChild.length) {
+            if (!tmpPChild || index >= tmpPChild.length - nodes.length) {
 				index = -1;
 			}
 
@@ -1883,7 +1883,7 @@
 	consts = zt.consts;
 })(jQuery);
 /*
- * JQuery zTree excheck v3.5.26
+ * JQuery zTree excheck v3.5.27
  * http://treejs.cn/
  *
  * Copyright (c) 2010 Hunter.z
@@ -1892,7 +1892,7 @@
  * http://www.opensource.org/licenses/mit-license.php
  *
  * email: hunter.z@263.net
- * Date: 2016-11-03
+ * Date: 2016-12-27
  */
 (function($){
 	//default consts of excheck
@@ -2511,7 +2511,7 @@
 	}
 })(jQuery);
 /*
- * JQuery zTree exedit v3.5.26
+ * JQuery zTree exedit v3.5.27
  * http://treejs.cn/
  *
  * Copyright (c) 2010 Hunter.z
@@ -2520,7 +2520,7 @@
  * http://www.opensource.org/licenses/mit-license.php
  *
  * email: hunter.z@263.net
- * Date: 2016-11-03
+ * Date: 2016-12-27
  */
 (function($){
 	//default consts of exedit
diff --git a/js/jquery.ztree.all.min.js b/js/jquery.ztree.all.min.js
index ecce52380f5fc480dd79f39545e99463a8d17cca..af78776362ba7519eb2eb31ff3d5e23156dd4973 100644
--- a/js/jquery.ztree.all.min.js
+++ b/js/jquery.ztree.all.min.js
@@ -1,6 +1,6 @@
 
 /*
- * JQuery zTree core v3.5.26
+ * JQuery zTree core v3.5.27
  * http://treejs.cn/
  *
  * Copyright (c) 2010 Hunter.z
@@ -9,7 +9,7 @@
  * http://www.opensource.org/licenses/mit-license.php
  *
  * email: hunter.z@263.net
- * Date: 2016-11-03
+ * Date: 2016-12-27
  */
 (function(q){var H,I,J,K,L,M,u,r={},v={},w={},N={treeId:"",treeObj:null,view:{addDiyDom:null,autoCancelSelected:!0,dblClickExpand:!0,expandSpeed:"fast",fontCss:{},nameIsHTML:!1,selectedMulti:!0,showIcon:!0,showLine:!0,showTitle:!0,txtSelectedEnable:!1},data:{key:{children:"children",name:"name",title:"",url:"url",icon:"icon"},simpleData:{enable:!1,idKey:"id",pIdKey:"pId",rootPId:null},keep:{parent:!1,leaf:!1}},async:{enable:!1,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}},x=[function(b){var a=b.treeObj,c=f.event;a.bind(c.NODECREATED,function(a,c,g){j.apply(b.callback.onNodeCreated,
@@ -38,7 +38,7 @@ j.apply(c.callback.beforeMouseUp,[c.treeId,a],!0)&&j.apply(c.callback.onMouseUp,
 return b==="input"||b==="textarea"};var j={apply:function(b,a,c){return typeof b=="function"?b.apply(O,a?a:[]):c},canAsync:function(b,a){var c=b.data.key.children;return b.async.enable&&a&&a.isParent&&!(a.zAsync||a[c]&&a[c].length>0)},clone:function(b){if(b===null)return null;var a=j.isArray(b)?[]:{},c;for(c in b)a[c]=b[c]instanceof Date?new Date(b[c].getTime()):typeof b[c]==="object"?j.clone(b[c]):b[c];return a},eqs:function(b,a){return b.toLowerCase()===a.toLowerCase()},isArray:function(b){return Object.prototype.toString.apply(b)===
 "[object Array]"},$:function(b,a,c){a&&typeof a!="string"&&(c=a,a="");return typeof b=="string"?q(b,c?c.treeObj.get(0).ownerDocument:null):q("#"+b.tId+a,c?c.treeObj:null)},getMDom:function(b,a,c){if(!a)return null;for(;a&&a.id!==b.treeId;){for(var d=0,e=c.length;a.tagName&&d<e;d++)if(j.eqs(a.tagName,c[d].tagName)&&a.getAttribute(c[d].attrName)!==null)return a;a=a.parentNode}return null},getNodeMainDom:function(b){return q(b).parent("li").get(0)||q(b).parentsUntil("li").parent().get(0)},isChildOrSelf:function(b,
 a){return q(b).closest("#"+a).length>0},uCanDo:function(){return!0}},i={addNodes:function(b,a,c,d,e){if(!b.data.keep.leaf||!a||a.isParent)if(j.isArray(d)||(d=[d]),b.data.simpleData.enable&&(d=h.transformTozTreeFormat(b,d)),a){var g=k(a,f.id.SWITCH,b),l=k(a,f.id.ICON,b),p=k(a,f.id.UL,b);if(!a.open)i.replaceSwitchClass(a,g,f.folder.CLOSE),i.replaceIcoClass(a,l,f.folder.CLOSE),a.open=!1,p.css({display:"none"});h.addNodesData(b,a,c,d);i.createNodes(b,a.level+1,d,a,c);e||i.expandCollapseParentNode(b,a,
-!0)}else h.addNodesData(b,h.getRoot(b),c,d),i.createNodes(b,0,d,null,c)},appendNodes:function(b,a,c,d,e,g,f){if(!c)return[];var j=[],n=b.data.key.children,k=(d?d:h.getRoot(b))[n],m,Q;if(!k||e>=k.length)e=-1;for(var s=0,R=c.length;s<R;s++){var o=c[s];g&&(m=(e===0||k.length==c.length)&&s==0,Q=e<0&&s==c.length-1,h.initNode(b,a,o,d,m,Q,f),h.addNodeCache(b,o));m=[];o[n]&&o[n].length>0&&(m=i.appendNodes(b,a+1,o[n],o,-1,g,f&&o.open));f&&(i.makeDOMNodeMainBefore(j,b,o),i.makeDOMNodeLine(j,b,o),h.getBeforeA(b,
+!0)}else h.addNodesData(b,h.getRoot(b),c,d),i.createNodes(b,0,d,null,c)},appendNodes:function(b,a,c,d,e,g,f){if(!c)return[];var j=[],n=b.data.key.children,k=(d?d:h.getRoot(b))[n],m,Q;if(!k||e>=k.length-c.length)e=-1;for(var s=0,R=c.length;s<R;s++){var o=c[s];g&&(m=(e===0||k.length==c.length)&&s==0,Q=e<0&&s==c.length-1,h.initNode(b,a,o,d,m,Q,f),h.addNodeCache(b,o));m=[];o[n]&&o[n].length>0&&(m=i.appendNodes(b,a+1,o[n],o,-1,g,f&&o.open));f&&(i.makeDOMNodeMainBefore(j,b,o),i.makeDOMNodeLine(j,b,o),h.getBeforeA(b,
 o,j),i.makeDOMNodeNameBefore(j,b,o),h.getInnerBeforeA(b,o,j),i.makeDOMNodeIcon(j,b,o),h.getInnerAfterA(b,o,j),i.makeDOMNodeNameAfter(j,b,o),h.getAfterA(b,o,j),o.isParent&&o.open&&i.makeUlHtml(b,o,j,m.join("")),i.makeDOMNodeMainAfter(j,b,o),h.addCreatedNode(b,o))}return j},appendParentULDom:function(b,a){var c=[],d=k(a,b);!d.get(0)&&a.parentTId&&(i.appendParentULDom(b,a.getParentNode()),d=k(a,b));var e=k(a,f.id.UL,b);e.get(0)&&e.remove();e=i.appendNodes(b,a.level+1,a[b.data.key.children],a,-1,!1,!0);
 i.makeUlHtml(b,a,c,e.join(""));d.append(c.join(""))},asyncNode:function(b,a,c,d){var e,g;if(a&&!a.isParent)return j.apply(d),!1;else if(a&&a.isAjaxing)return!1;else if(j.apply(b.callback.beforeAsync,[b.treeId,a],!0)==!1)return j.apply(d),!1;if(a)a.isAjaxing=!0,k(a,f.id.ICON,b).attr({style:"","class":f.className.BUTTON+" "+f.className.ICO_LOADING});var l={};for(e=0,g=b.async.autoParam.length;a&&e<g;e++){var p=b.async.autoParam[e].split("="),n=p;p.length>1&&(n=p[1],p=p[0]);l[n]=a[p]}if(j.isArray(b.async.otherParam))for(e=
 0,g=b.async.otherParam.length;e<g;e+=2)l[b.async.otherParam[e]]=b.async.otherParam[e+1];else for(var m in b.async.otherParam)l[m]=b.async.otherParam[m];var P=h.getRoot(b)._ver;q.ajax({contentType:b.async.contentType,cache:!1,type:b.async.type,url:j.apply(b.async.url,[b.treeId,a],b.async.url),data:b.async.contentType.indexOf("application/json")>-1?JSON.stringify(l):l,dataType:b.async.dataType,success:function(e){if(P==h.getRoot(b)._ver){var g=[];try{g=!e||e.length==0?[]:typeof e=="string"?eval("("+
@@ -75,7 +75,7 @@ d.view.selectedMulti&&b;if(a.parentTId)i.expandCollapseParentNode(d,a.getParentN
 b[a].length>0?i.createNodes(d,0,b[a],null,-1):d.async.enable&&d.async.url&&d.async.url!==""&&i.asyncNode(d);return c}};var O=q.fn.zTree,k=j.$,f=O.consts})(jQuery);
 
 /*
- * JQuery zTree excheck v3.5.26
+ * JQuery zTree excheck v3.5.27
  * http://treejs.cn/
  *
  * Copyright (c) 2010 Hunter.z
@@ -84,7 +84,7 @@ b[a].length>0?i.createNodes(d,0,b[a],null,-1):d.async.enable&&d.async.url&&d.asy
  * http://www.opensource.org/licenses/mit-license.php
  *
  * email: hunter.z@263.net
- * Date: 2016-11-03
+ * Date: 2016-12-27
  */
 (function(m){var p,q,r,o={event:{CHECK:"ztree_check"},id:{CHECK:"_check"},checkbox:{STYLE:"checkbox",DEFAULT:"chk",DISABLED:"disable",FALSE:"false",TRUE:"true",FULL:"full",PART:"part",FOCUS:"focus"},radio:{STYLE:"radio",TYPE_ALL:"all",TYPE_LEVEL:"level"}},v={check:{enable:!1,autoCheckTrigger:!1,chkStyle:o.checkbox.STYLE,nocheckInherit:!1,chkDisabledInherit:!1,radioType:o.radio.TYPE_LEVEL,chkboxType:{Y:"ps",N:"ps"}},data:{key:{checked:"checked"}},callback:{beforeCheck:null,onCheck:null}};p=function(c,
 a){if(a.chkDisabled===!0)return!1;var b=g.getSetting(c.data.treeId),d=b.data.key.checked;if(k.apply(b.callback.beforeCheck,[b.treeId,a],!0)==!1)return!0;a[d]=!a[d];e.checkNodeRelation(b,a);d=n(a,j.id.CHECK,b);e.setChkClass(b,d,a);e.repairParentChkClassWithSelf(b,a);b.treeObj.trigger(j.event.CHECK,[c,b.treeId,a]);return!0};q=function(c,a){if(a.chkDisabled===!0)return!1;var b=g.getSetting(c.data.treeId),d=n(a,j.id.CHECK,b);a.check_Focus=!0;e.setChkClass(b,d,a);return!0};r=function(c,a){if(a.chkDisabled===
@@ -110,7 +110,7 @@ j.radio.STYLE)&&e.checkNodeRelation(this.setting,c);e.setChkClass(this.setting,i
 d&&g.makeChkFlag(c,d);return f}})(jQuery);
 
 /*
- * JQuery zTree exedit v3.5.26
+ * JQuery zTree exedit v3.5.27
  * http://treejs.cn/
  *
  * Copyright (c) 2010 Hunter.z
@@ -119,7 +119,7 @@ d&&g.makeChkFlag(c,d);return f}})(jQuery);
  * http://www.opensource.org/licenses/mit-license.php
  *
  * email: hunter.z@263.net
- * Date: 2016-11-03
+ * Date: 2016-12-27
  */
 (function(v){var J={event:{DRAG:"ztree_drag",DROP:"ztree_drop",RENAME:"ztree_rename",DRAGMOVE:"ztree_dragmove"},id:{EDIT:"_edit",INPUT:"_input",REMOVE:"_remove"},move:{TYPE_INNER:"inner",TYPE_PREV:"prev",TYPE_NEXT:"next"},node:{CURSELECTED_EDIT:"curSelectedNode_Edit",TMPTARGET_TREE:"tmpTargetzTree",TMPTARGET_NODE:"tmpTargetNode"}},x={onHoverOverNode:function(b,a){var c=m.getSetting(b.data.treeId),d=m.getRoot(c);if(d.curHoverNode!=a)x.onHoverOutNode(b);d.curHoverNode=a;f.addHoverDom(c,a)},onHoverOutNode:function(b){var b=
 m.getSetting(b.data.treeId),a=m.getRoot(b);if(a.curHoverNode&&!m.isSelectedNode(b,a.curHoverNode))f.removeTreeDom(b,a.curHoverNode),a.curHoverNode=null},onMousedownNode:function(b,a){function c(b){if(B.dragFlag==0&&Math.abs(O-b.clientX)<e.edit.drag.minMoveSize&&Math.abs(P-b.clientY)<e.edit.drag.minMoveSize)return!0;var a,c,n,k,i;i=e.data.key.children;M.css("cursor","pointer");if(B.dragFlag==0){if(g.apply(e.callback.beforeDrag,[e.treeId,l],!0)==!1)return r(b),!0;for(a=0,c=l.length;a<c;a++){if(a==0)B.dragNodeShowBefore=
diff --git a/js/jquery.ztree.core.js b/js/jquery.ztree.core.js
index 63b9e247d1e73c5b3b22281edc611eafe5806a75..de2ed087276eaed435800d648feb1ab17a386b36 100644
--- a/js/jquery.ztree.core.js
+++ b/js/jquery.ztree.core.js
@@ -1,5 +1,5 @@
 /*
- * JQuery zTree core v3.5.26
+ * JQuery zTree core v3.5.27
  * http://treejs.cn/
  *
  * Copyright (c) 2010 Hunter.z
@@ -8,7 +8,7 @@
  * http://www.opensource.org/licenses/mit-license.php
  *
  * email: hunter.z@263.net
- * Date: 2016-11-03
+ * Date: 2016-12-27
  */
 (function($){
 	var settings = {}, roots = {}, caches = {},
@@ -905,7 +905,7 @@
 				tmpPChild = tmpPNode[childKey],
 				isFirstNode, isLastNode;
 
-			if (!tmpPChild || index >= tmpPChild.length) {
+            if (!tmpPChild || index >= tmpPChild.length - nodes.length) {
 				index = -1;
 			}
 
diff --git a/js/jquery.ztree.core.min.js b/js/jquery.ztree.core.min.js
index b46d607bfdb5fc8c0fb82910759b03687c2f2f25..8adb38e53096bebc4d35accf38a011cfc1648dc8 100644
--- a/js/jquery.ztree.core.min.js
+++ b/js/jquery.ztree.core.min.js
@@ -1,5 +1,5 @@
 /*
- * JQuery zTree core v3.5.26
+ * JQuery zTree core v3.5.27
  * http://treejs.cn/
  *
  * Copyright (c) 2010 Hunter.z
@@ -8,7 +8,7 @@
  * http://www.opensource.org/licenses/mit-license.php
  *
  * email: hunter.z@263.net
- * Date: 2016-11-03
+ * Date: 2016-12-27
  */
 (function(q){var H,I,J,K,L,M,u,r={},v={},w={},N={treeId:"",treeObj:null,view:{addDiyDom:null,autoCancelSelected:!0,dblClickExpand:!0,expandSpeed:"fast",fontCss:{},nameIsHTML:!1,selectedMulti:!0,showIcon:!0,showLine:!0,showTitle:!0,txtSelectedEnable:!1},data:{key:{children:"children",name:"name",title:"",url:"url",icon:"icon"},simpleData:{enable:!1,idKey:"id",pIdKey:"pId",rootPId:null},keep:{parent:!1,leaf:!1}},async:{enable:!1,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}},x=[function(b){var a=b.treeObj,c=f.event;a.bind(c.NODECREATED,function(a,c,g){j.apply(b.callback.onNodeCreated,
@@ -37,7 +37,7 @@ j.apply(c.callback.beforeMouseUp,[c.treeId,a],!0)&&j.apply(c.callback.onMouseUp,
 return b==="input"||b==="textarea"};var j={apply:function(b,a,c){return typeof b=="function"?b.apply(O,a?a:[]):c},canAsync:function(b,a){var c=b.data.key.children;return b.async.enable&&a&&a.isParent&&!(a.zAsync||a[c]&&a[c].length>0)},clone:function(b){if(b===null)return null;var a=j.isArray(b)?[]:{},c;for(c in b)a[c]=b[c]instanceof Date?new Date(b[c].getTime()):typeof b[c]==="object"?j.clone(b[c]):b[c];return a},eqs:function(b,a){return b.toLowerCase()===a.toLowerCase()},isArray:function(b){return Object.prototype.toString.apply(b)===
 "[object Array]"},$:function(b,a,c){a&&typeof a!="string"&&(c=a,a="");return typeof b=="string"?q(b,c?c.treeObj.get(0).ownerDocument:null):q("#"+b.tId+a,c?c.treeObj:null)},getMDom:function(b,a,c){if(!a)return null;for(;a&&a.id!==b.treeId;){for(var d=0,e=c.length;a.tagName&&d<e;d++)if(j.eqs(a.tagName,c[d].tagName)&&a.getAttribute(c[d].attrName)!==null)return a;a=a.parentNode}return null},getNodeMainDom:function(b){return q(b).parent("li").get(0)||q(b).parentsUntil("li").parent().get(0)},isChildOrSelf:function(b,
 a){return q(b).closest("#"+a).length>0},uCanDo:function(){return!0}},i={addNodes:function(b,a,c,d,e){if(!b.data.keep.leaf||!a||a.isParent)if(j.isArray(d)||(d=[d]),b.data.simpleData.enable&&(d=h.transformTozTreeFormat(b,d)),a){var g=k(a,f.id.SWITCH,b),l=k(a,f.id.ICON,b),p=k(a,f.id.UL,b);if(!a.open)i.replaceSwitchClass(a,g,f.folder.CLOSE),i.replaceIcoClass(a,l,f.folder.CLOSE),a.open=!1,p.css({display:"none"});h.addNodesData(b,a,c,d);i.createNodes(b,a.level+1,d,a,c);e||i.expandCollapseParentNode(b,a,
-!0)}else h.addNodesData(b,h.getRoot(b),c,d),i.createNodes(b,0,d,null,c)},appendNodes:function(b,a,c,d,e,g,f){if(!c)return[];var j=[],n=b.data.key.children,k=(d?d:h.getRoot(b))[n],m,Q;if(!k||e>=k.length)e=-1;for(var s=0,R=c.length;s<R;s++){var o=c[s];g&&(m=(e===0||k.length==c.length)&&s==0,Q=e<0&&s==c.length-1,h.initNode(b,a,o,d,m,Q,f),h.addNodeCache(b,o));m=[];o[n]&&o[n].length>0&&(m=i.appendNodes(b,a+1,o[n],o,-1,g,f&&o.open));f&&(i.makeDOMNodeMainBefore(j,b,o),i.makeDOMNodeLine(j,b,o),h.getBeforeA(b,
+!0)}else h.addNodesData(b,h.getRoot(b),c,d),i.createNodes(b,0,d,null,c)},appendNodes:function(b,a,c,d,e,g,f){if(!c)return[];var j=[],n=b.data.key.children,k=(d?d:h.getRoot(b))[n],m,Q;if(!k||e>=k.length-c.length)e=-1;for(var s=0,R=c.length;s<R;s++){var o=c[s];g&&(m=(e===0||k.length==c.length)&&s==0,Q=e<0&&s==c.length-1,h.initNode(b,a,o,d,m,Q,f),h.addNodeCache(b,o));m=[];o[n]&&o[n].length>0&&(m=i.appendNodes(b,a+1,o[n],o,-1,g,f&&o.open));f&&(i.makeDOMNodeMainBefore(j,b,o),i.makeDOMNodeLine(j,b,o),h.getBeforeA(b,
 o,j),i.makeDOMNodeNameBefore(j,b,o),h.getInnerBeforeA(b,o,j),i.makeDOMNodeIcon(j,b,o),h.getInnerAfterA(b,o,j),i.makeDOMNodeNameAfter(j,b,o),h.getAfterA(b,o,j),o.isParent&&o.open&&i.makeUlHtml(b,o,j,m.join("")),i.makeDOMNodeMainAfter(j,b,o),h.addCreatedNode(b,o))}return j},appendParentULDom:function(b,a){var c=[],d=k(a,b);!d.get(0)&&a.parentTId&&(i.appendParentULDom(b,a.getParentNode()),d=k(a,b));var e=k(a,f.id.UL,b);e.get(0)&&e.remove();e=i.appendNodes(b,a.level+1,a[b.data.key.children],a,-1,!1,!0);
 i.makeUlHtml(b,a,c,e.join(""));d.append(c.join(""))},asyncNode:function(b,a,c,d){var e,g;if(a&&!a.isParent)return j.apply(d),!1;else if(a&&a.isAjaxing)return!1;else if(j.apply(b.callback.beforeAsync,[b.treeId,a],!0)==!1)return j.apply(d),!1;if(a)a.isAjaxing=!0,k(a,f.id.ICON,b).attr({style:"","class":f.className.BUTTON+" "+f.className.ICO_LOADING});var l={};for(e=0,g=b.async.autoParam.length;a&&e<g;e++){var p=b.async.autoParam[e].split("="),n=p;p.length>1&&(n=p[1],p=p[0]);l[n]=a[p]}if(j.isArray(b.async.otherParam))for(e=
 0,g=b.async.otherParam.length;e<g;e+=2)l[b.async.otherParam[e]]=b.async.otherParam[e+1];else for(var m in b.async.otherParam)l[m]=b.async.otherParam[m];var P=h.getRoot(b)._ver;q.ajax({contentType:b.async.contentType,cache:!1,type:b.async.type,url:j.apply(b.async.url,[b.treeId,a],b.async.url),data:b.async.contentType.indexOf("application/json")>-1?JSON.stringify(l):l,dataType:b.async.dataType,success:function(e){if(P==h.getRoot(b)._ver){var g=[];try{g=!e||e.length==0?[]:typeof e=="string"?eval("("+
diff --git a/js/jquery.ztree.excheck.js b/js/jquery.ztree.excheck.js
index e5a741cf887146601a56f64ddae53f5b412bcd12..a9124710d3531001d9443cbbb98a807a616a573c 100644
--- a/js/jquery.ztree.excheck.js
+++ b/js/jquery.ztree.excheck.js
@@ -1,5 +1,5 @@
 /*
- * JQuery zTree excheck v3.5.26
+ * JQuery zTree excheck v3.5.27
  * http://treejs.cn/
  *
  * Copyright (c) 2010 Hunter.z
@@ -8,7 +8,7 @@
  * http://www.opensource.org/licenses/mit-license.php
  *
  * email: hunter.z@263.net
- * Date: 2016-11-03
+ * Date: 2016-12-27
  */
 (function($){
 	//default consts of excheck
diff --git a/js/jquery.ztree.excheck.min.js b/js/jquery.ztree.excheck.min.js
index 74377886ac488ec9331f34ca4d990ac5a0764bd1..cf8b67057579d45c536517408c2a35d5c4e794d5 100644
--- a/js/jquery.ztree.excheck.min.js
+++ b/js/jquery.ztree.excheck.min.js
@@ -1,5 +1,5 @@
 /*
- * JQuery zTree excheck v3.5.26
+ * JQuery zTree excheck v3.5.27
  * http://treejs.cn/
  *
  * Copyright (c) 2010 Hunter.z
@@ -8,7 +8,7 @@
  * http://www.opensource.org/licenses/mit-license.php
  *
  * email: hunter.z@263.net
- * Date: 2016-11-03
+ * Date: 2016-12-27
  */
 (function(m){var p,q,r,o={event:{CHECK:"ztree_check"},id:{CHECK:"_check"},checkbox:{STYLE:"checkbox",DEFAULT:"chk",DISABLED:"disable",FALSE:"false",TRUE:"true",FULL:"full",PART:"part",FOCUS:"focus"},radio:{STYLE:"radio",TYPE_ALL:"all",TYPE_LEVEL:"level"}},v={check:{enable:!1,autoCheckTrigger:!1,chkStyle:o.checkbox.STYLE,nocheckInherit:!1,chkDisabledInherit:!1,radioType:o.radio.TYPE_LEVEL,chkboxType:{Y:"ps",N:"ps"}},data:{key:{checked:"checked"}},callback:{beforeCheck:null,onCheck:null}};p=function(c,
 a){if(a.chkDisabled===!0)return!1;var b=g.getSetting(c.data.treeId),d=b.data.key.checked;if(k.apply(b.callback.beforeCheck,[b.treeId,a],!0)==!1)return!0;a[d]=!a[d];e.checkNodeRelation(b,a);d=n(a,j.id.CHECK,b);e.setChkClass(b,d,a);e.repairParentChkClassWithSelf(b,a);b.treeObj.trigger(j.event.CHECK,[c,b.treeId,a]);return!0};q=function(c,a){if(a.chkDisabled===!0)return!1;var b=g.getSetting(c.data.treeId),d=n(a,j.id.CHECK,b);a.check_Focus=!0;e.setChkClass(b,d,a);return!0};r=function(c,a){if(a.chkDisabled===
diff --git a/js/jquery.ztree.exedit.js b/js/jquery.ztree.exedit.js
index b7c46c974f21637212a9fa0ef874afbf9e2057f6..a204f94a0a11c8728243e3b9804b60985f6a8931 100644
--- a/js/jquery.ztree.exedit.js
+++ b/js/jquery.ztree.exedit.js
@@ -1,5 +1,5 @@
 /*
- * JQuery zTree exedit v3.5.26
+ * JQuery zTree exedit v3.5.27
  * http://treejs.cn/
  *
  * Copyright (c) 2010 Hunter.z
@@ -8,7 +8,7 @@
  * http://www.opensource.org/licenses/mit-license.php
  *
  * email: hunter.z@263.net
- * Date: 2016-11-03
+ * Date: 2016-12-27
  */
 (function($){
 	//default consts of exedit
diff --git a/js/jquery.ztree.exedit.min.js b/js/jquery.ztree.exedit.min.js
index a9d4a5bc439a56359d1a092c8ade083a85110b08..f91260bff3e28c6e6d32e2b2348b9a36915130dc 100644
--- a/js/jquery.ztree.exedit.min.js
+++ b/js/jquery.ztree.exedit.min.js
@@ -1,5 +1,5 @@
 /*
- * JQuery zTree exedit v3.5.26
+ * JQuery zTree exedit v3.5.27
  * http://treejs.cn/
  *
  * Copyright (c) 2010 Hunter.z
@@ -8,7 +8,7 @@
  * http://www.opensource.org/licenses/mit-license.php
  *
  * email: hunter.z@263.net
- * Date: 2016-11-03
+ * Date: 2016-12-27
  */
 (function(v){var J={event:{DRAG:"ztree_drag",DROP:"ztree_drop",RENAME:"ztree_rename",DRAGMOVE:"ztree_dragmove"},id:{EDIT:"_edit",INPUT:"_input",REMOVE:"_remove"},move:{TYPE_INNER:"inner",TYPE_PREV:"prev",TYPE_NEXT:"next"},node:{CURSELECTED_EDIT:"curSelectedNode_Edit",TMPTARGET_TREE:"tmpTargetzTree",TMPTARGET_NODE:"tmpTargetNode"}},x={onHoverOverNode:function(b,a){var c=m.getSetting(b.data.treeId),d=m.getRoot(c);if(d.curHoverNode!=a)x.onHoverOutNode(b);d.curHoverNode=a;f.addHoverDom(c,a)},onHoverOutNode:function(b){var b=
 m.getSetting(b.data.treeId),a=m.getRoot(b);if(a.curHoverNode&&!m.isSelectedNode(b,a.curHoverNode))f.removeTreeDom(b,a.curHoverNode),a.curHoverNode=null},onMousedownNode:function(b,a){function c(b){if(B.dragFlag==0&&Math.abs(O-b.clientX)<e.edit.drag.minMoveSize&&Math.abs(P-b.clientY)<e.edit.drag.minMoveSize)return!0;var a,c,n,k,i;i=e.data.key.children;M.css("cursor","pointer");if(B.dragFlag==0){if(g.apply(e.callback.beforeDrag,[e.treeId,l],!0)==!1)return r(b),!0;for(a=0,c=l.length;a<c;a++){if(a==0)B.dragNodeShowBefore=
diff --git a/js/jquery.ztree.exhide.js b/js/jquery.ztree.exhide.js
index eae1a93a16852f2ac65d59e84dba39260b2dbedd..a38cc20c5aa8ffdb2a80dc2982b8418f3188e49d 100644
--- a/js/jquery.ztree.exhide.js
+++ b/js/jquery.ztree.exhide.js
@@ -1,5 +1,5 @@
 /*
- * JQuery zTree exHideNodes v3.5.26
+ * JQuery zTree exHideNodes v3.5.27
  * http://treejs.cn/
  *
  * Copyright (c) 2010 Hunter.z
@@ -8,7 +8,7 @@
  * http://www.opensource.org/licenses/mit-license.php
  *
  * email: hunter.z@263.net
- * Date: 2016-11-03
+ * Date: 2016-12-27
  */
 (function($){
 	//default init node of exLib
diff --git a/js/jquery.ztree.exhide.min.js b/js/jquery.ztree.exhide.min.js
index c908db9546c4ff2b9591b5ba6124ed9398a03c0a..0c0bb87b64ea72a3fea9db91bb4d3a57a5138419 100644
--- a/js/jquery.ztree.exhide.min.js
+++ b/js/jquery.ztree.exhide.min.js
@@ -1,5 +1,5 @@
 /*
- * JQuery zTree exHideNodes v3.5.26
+ * JQuery zTree exHideNodes v3.5.27
  * http://treejs.cn/
  *
  * Copyright (c) 2010 Hunter.z
@@ -8,7 +8,7 @@
  * http://www.opensource.org/licenses/mit-license.php
  *
  * email: hunter.z@263.net
- * Date: 2016-11-03
+ * Date: 2016-12-27
  */
 (function(i){i.extend(!0,i.fn.zTree._z,{view:{clearOldFirstNode:function(c,a){for(var b=a.getNextNode();b;){if(b.isFirstNode){b.isFirstNode=!1;d.setNodeLineIcos(c,b);break}if(b.isLastNode)break;b=b.getNextNode()}},clearOldLastNode:function(c,a,b){for(a=a.getPreNode();a;){if(a.isLastNode){a.isLastNode=!1;b&&d.setNodeLineIcos(c,a);break}if(a.isFirstNode)break;a=a.getPreNode()}},makeDOMNodeMainBefore:function(c,a,b){c.push("<li ",b.isHidden?"style='display:none;' ":"","id='",b.tId,"' class='",l.className.LEVEL,
 b.level,"' tabindex='0' hidefocus='true' treenode>")},showNode:function(c,a){a.isHidden=!1;f.initShowForExCheck(c,a);j(a,c).show()},showNodes:function(c,a,b){if(a&&a.length!=0){var e={},g,k;for(g=0,k=a.length;g<k;g++){var h=a[g];if(!e[h.parentTId]){var i=h.getParentNode();e[h.parentTId]=i===null?f.getRoot(c):h.getParentNode()}d.showNode(c,h,b)}for(var j in e)a=e[j][c.data.key.children],d.setFirstNodeForShow(c,a),d.setLastNodeForShow(c,a)}},hideNode:function(c,a){a.isHidden=!0;a.isFirstNode=!1;a.isLastNode=
diff --git a/log v3.x.txt b/log v3.x.txt
index 71f29b284cbb5deabb889eb1c953ba33b9be6243..064dd292470d6aa9240200b4e92a8f512ec63237 100644
--- a/log v3.x.txt	
+++ b/log v3.x.txt	
@@ -13,6 +13,9 @@
 
 </font>
 
+*2016.12.27* v3.5.27
+   * [修改] addNodes 方法设置 index 参数后，导致 treeNode.isLastNode 错误
+
 *2016.11.03* v3.5.26
    * [修改] 使用 scrollIntoViewIfNeeded 替代 scrollIntoView，兼容各种浏览器