diff --git a/src/main/webapp/WEB-INF/jsp/index.jsp b/src/main/webapp/WEB-INF/jsp/index.jsp
index 3dbfecd9..2e834e00 100644
--- a/src/main/webapp/WEB-INF/jsp/index.jsp
+++ b/src/main/webapp/WEB-INF/jsp/index.jsp
@@ -64,8 +64,8 @@
     </c:set>
     
     <script>
-		let sticky = {id: -1, index: "dashboard", name: "대시보드", url: "/dashboard.do", parentID: null, description: "대시보드"},
-		mainTabs = new TabControl({
+		let sticky = {id: -1, index: "dashboard", name: "대시보드", url: "/dashboard.do", parentID: null, description: "대시보드"};
+		let mainTabs = new TabControl({
 			sticky: sticky,
 			getMenu: (url) => menuSupport.getMenu(url),
 			onDatasetChange: tabs => {
diff --git a/src/main/webapp/resources/js/base/dataset.js b/src/main/webapp/resources/js/base/dataset.js
index e549de72..9bc7d39b 100644
--- a/src/main/webapp/resources/js/base/dataset.js
+++ b/src/main/webapp/resources/js/base/dataset.js
@@ -369,7 +369,6 @@ class Dataset {
 	 *				<li>{@link Dataset#onModify onModify}</li>
 	 *				<li>{@link Dataset#onReplace onReplace}</li>
 	 *				<li>{@link Dataset#onRemove onRemove}</li>
-	 *				<li>{@link Dataset#onErase onErase}</li>
 	 *				<li>{@link Dataset#onDirtiesChange onDirtiesChange}</li>
 	 *			</ul>
 	 *		</li>
@@ -396,7 +395,6 @@ class Dataset {
 			"onModify",
 			"onReplace",
 			"onRemove",
-			"onErase",
 			"onDirtiesChange"
 		].forEach(on => {
 			let handler = conf[on]
@@ -1045,8 +1043,7 @@ class Dataset {
 
 	/**Erases user data associated with the key.
 	 * After user data removal, the methods
-	 * <ul>	<li>{@link Dataset#onErase}</li>
-	 *		<li>{@link Dataset#onCurrentChange}</li>
+	 * <ul>	<li>{@link Dataset#onCurrentChange}</li>
 	 *		<li>{@link Dataset#onSelectionChange}</li>
 	 *		<li>{@link Dataset#onDirtiesChange}(if the Dataset gets dirty or not dirty)</li>
 	 * </ul>
@@ -1097,7 +1094,7 @@ class Dataset {
 		}
 		this._items = this._items.filter(function(item){return !erased.includes(item);});
 
-		this.onErase(erased);
+		this.onRemove(erased);
 		this.setState(state);
 		let after = this.dirty;
 		if (before != after)
@@ -1217,11 +1214,6 @@ class Dataset {
 	 */
 	onRemove(removed) {this.log("Data removed", removed)}
 
-	/**Called back when user data are erased.
-	 * @param {array} erased array of erased dataItems
-	 */
-	onErase(erased) {this.log("Data erased", erased)}
-
 	/**Called back when the Dataset gets dirty or not dirty.
 	 * @param {boolean} dirty
 	 * <ul>	<li>true if the Dataset is dirty</li>
diff --git a/src/main/webapp/resources/js/base/menu-support.js b/src/main/webapp/resources/js/base/menu-support.js
index f8ec80c9..a41dc26b 100644
--- a/src/main/webapp/resources/js/base/menu-support.js
+++ b/src/main/webapp/resources/js/base/menu-support.js
@@ -272,9 +272,10 @@ class TabControl extends Dataset {
 				if (!menu)
 					throw "Menu not found for " + url;
 
-				if (this._items.length == this.maxCount) {
-					let index = isEmpty(this.sticky.url) ? 0 : 1;
-					this._remove(this._items[index]);
+				if (this.length == this.maxCount) {
+					let index = isEmpty(this.sticky) ? 0 : 1,
+						first = this._items[index];
+					this.close(first.data.url)
 				}
 				
 				menu.content = resp;
@@ -285,23 +286,7 @@ class TabControl extends Dataset {
 	}
 
 	close(url) {
-		let removed = this._remove(this.getTab(url));
-		if (removed)
-			this.setState();
-	}
-
-	_remove(tab) {
-		if (!tab || this._items.length < 1)
-			return false;
-
-		let index = this._items.indexOf(tab);
-		if (index < 0)
-			return false;
-
-		this._items.splice(index, 1);
-		index = tab.data.index;
-		delete this._byKeys["key-" + index];
-		this.onRemove([tab]);
-		return true;
+		let tab = this.getTab(url);
+		this.erase(tab.data.index);
 	}
 }
\ No newline at end of file