diff --git a/doc/zh_CN/keyboard_shortcuts.html b/doc/zh_CN/keyboard_shortcuts.html
index 5c841c3..71a311f 100644
--- a/doc/zh_CN/keyboard_shortcuts.html
+++ b/doc/zh_CN/keyboard_shortcuts.html
@@ -27,8 +27,10 @@
         <ul>           
             <li>Ctrl+1：焦点切换到文件树</li>
             <li>Ctrl+4：焦点切换到输出窗口</li>
+            <li>Ctrl+5：焦点切换到搜索窗口</li>
+            <li>Ctrl+6：焦点切换到通知窗口</li>
         </ul>	
-        
+
         <h2>运行</h2>
         <ul>
             <li>F6：构建 & 运行</li>
diff --git a/main.go b/main.go
index 9efef3e..f5f73d4 100644
--- a/main.go
+++ b/main.go
@@ -40,7 +40,7 @@ func init() {
 // Wide 首页.
 func indexHandler(w http.ResponseWriter, r *http.Request) {
 	// 创建一个 Wide 会话
-	wideSession := user.NewSession()
+	wideSession := user.WideSessions.New()
 
 	i18n.Load()
 
@@ -54,7 +54,8 @@ func indexHandler(w http.ResponseWriter, r *http.Request) {
 		name := conf.Wide.Users[0].Name
 
 		httpSession.Values["username"] = name
-		httpSession.Values["id"] = strconv.Itoa(rand.Int())
+		httpSessionId := strconv.Itoa(rand.Int())
+		httpSession.Values["id"] = httpSessionId
 		// 一天过期
 		httpSession.Options.MaxAge = 60 * 60 * 24
 
@@ -63,6 +64,9 @@ func indexHandler(w http.ResponseWriter, r *http.Request) {
 
 	httpSession.Save(r, w)
 
+	// Wide 会话关联 HTTP 会话
+	wideSession.HTTPSessionId = httpSession.Values["id"].(string)
+
 	t, err := template.ParseFiles("view/index.html")
 
 	if nil != err {
diff --git a/static/js/editor.js b/static/js/editor.js
index 9f5c572..d58e3ac 100644
--- a/static/js/editor.js
+++ b/static/js/editor.js
@@ -1,10 +1,10 @@
 var editors = {
     data: [],
-    init: function() {
+    init: function () {
         editors._initAutocomplete();
         editors.tabs = new Tabs({
             id: ".edit-panel",
-            clickAfter: function(id) {
+            clickAfter: function (id) {
                 // set tree node selected
                 var node = tree.fileTree.getNodeByTId(id);
                 tree.fileTree.selectNode(node);
@@ -19,7 +19,7 @@ var editors = {
 
                 wide.curEditor.focus();
             },
-            removeAfter: function(id, nextId) {
+            removeAfter: function (id, nextId) {
                 for (var i = 0, ii = editors.data.length; i < ii; i++) {
                     if (editors.data[i].id === id) {
                         editors.data.splice(i, 1);
@@ -57,16 +57,16 @@ var editors = {
         });
 
 
-        $(".edit-header .tabs").on("dblclick", "div", function() {
+        $(".edit-header .tabs").on("dblclick", "div", function () {
             editors.fullscreen();
         });
     },
-    fullscreen: function() {
+    fullscreen: function () {
         wide.curEditor.setOption("fullScreen", true);
         wide.curEditor.focus();
     },
-    _initAutocomplete: function() {
-        CodeMirror.registerHelper("hint", "go", function(editor) {
+    _initAutocomplete: function () {
+        CodeMirror.registerHelper("hint", "go", function (editor) {
             var word = /[\w$]+/;
 
             var cur = editor.getCursor(), curLine = editor.getLine(cur.line);
@@ -78,13 +78,12 @@ var editors = {
             while (start && word.test(curLine.charAt(start - 1))) {
                 --start;
             }
-            
-            var request = {
-                path: $(".edit-header .current > span:eq(0)").attr("title"),
-                code: editor.getValue(),
-                cursorLine: cur.line,
-                cursorCh: cur.ch
-            };
+
+            var request = newWideRequest();
+            request.path = $(".edit-header .current > span:eq(0)").attr("title");
+            request.code = editor.getValue();
+            request.cursorLine = cur.line;
+            request.cursorCh = cur.ch;
 
             var autocompleteHints = [];
 
@@ -94,7 +93,7 @@ var editors = {
                 url: '/autocomplete',
                 data: JSON.stringify(request),
                 dataType: "json",
-                success: function(data) {
+                success: function (data) {
                     var autocompleteArray = data[1];
 
                     if (autocompleteArray) {
@@ -108,8 +107,8 @@ var editors = {
             return {list: autocompleteHints, from: CodeMirror.Pos(cur.line, start), to: CodeMirror.Pos(cur.line, end)};
         });
 
-        CodeMirror.commands.autocompleteAfterDot = function(cm) {
-            setTimeout(function() {
+        CodeMirror.commands.autocompleteAfterDot = function (cm) {
+            setTimeout(function () {
                 if (!cm.state.completionActive) {
                     cm.showHint({hint: CodeMirror.hint.go, completeSingle: false});
                 }
@@ -118,35 +117,34 @@ var editors = {
             return CodeMirror.Pass;
         };
 
-        CodeMirror.commands.autocompleteAnyWord = function(cm) {
+        CodeMirror.commands.autocompleteAnyWord = function (cm) {
             cm.showHint({hint: CodeMirror.hint.auto});
         };
 
-        CodeMirror.commands.gotoLine = function(cm) {
+        CodeMirror.commands.gotoLine = function (cm) {
             var line = prompt("Go To Line: ", "0");
 
             cm.setCursor(CodeMirror.Pos(line - 1, 0));
         };
 
-        CodeMirror.commands.doNothing = function(cm) {
+        CodeMirror.commands.doNothing = function (cm) {
         };
 
-        CodeMirror.commands.jumpToDecl = function(cm) {
+        CodeMirror.commands.jumpToDecl = function (cm) {
             var cur = wide.curEditor.getCursor();
 
-            var request = {
-                path: $(".edit-header .current > span:eq(0)").attr("title"),
-                code: wide.curEditor.getValue(),
-                cursorLine: cur.line,
-                cursorCh: cur.ch
-            };
+            var request = newWideRequest();
+            request.path = $(".edit-header .current > span:eq(0)").attr("title");
+            request.code = wide.curEditor.getValue();
+            request.cursorLine = cur.line;
+            request.cursorCh = cur.ch;
 
             $.ajax({
                 type: 'POST',
                 url: '/find/decl',
                 data: JSON.stringify(request),
                 dataType: "json",
-                success: function(data) {
+                success: function (data) {
                     if (!data.succ) {
                         return;
                     }
@@ -154,16 +152,15 @@ var editors = {
                     var cursorLine = data.cursorLine;
                     var cursorCh = data.cursorCh;
 
-                    var request = {
-                        path: data.path
-                    };
+                    var request = newWideRequest();
+                    request.path = data.path;
 
                     $.ajax({
                         type: 'POST',
                         url: '/file',
                         data: JSON.stringify(request),
                         dataType: "json",
-                        success: function(data) {
+                        success: function (data) {
                             if (!data.succ) {
                                 alert(data.msg);
 
@@ -183,22 +180,21 @@ var editors = {
             });
         };
 
-        CodeMirror.commands.findUsages = function(cm) {
+        CodeMirror.commands.findUsages = function (cm) {
             var cur = wide.curEditor.getCursor();
 
-            var request = {
-                file: wide.curNode.path,
-                code: wide.curEditor.getValue(),
-                cursorLine: cur.line,
-                cursorCh: cur.ch
-            };
+            var request = newWideRequest();
+            request.file = wide.curNode.path;
+            request.code = wide.curEditor.getValue();
+            request.cursorLine = cur.line;
+            request.cursorCh = cur.ch;
 
             $.ajax({
                 type: 'POST',
                 url: '/find/usages',
                 data: JSON.stringify(request),
                 dataType: "json",
-                success: function(data) {
+                success: function (data) {
                     console.log(data);
 
                     if (!data.succ) {
@@ -211,7 +207,7 @@ var editors = {
         };
     },
     // 新建一个编辑器 Tab，如果已经存在 Tab 则切换到该 Tab.
-    newEditor: function(data) {
+    newEditor: function (data) {
         $(".ico-fullscreen").show();
         var id = wide.curNode.tId;
 
@@ -256,12 +252,12 @@ var editors = {
             extraKeys: {
                 "Ctrl-\\": "autocompleteAnyWord",
                 ".": "autocompleteAfterDot",
-                "Esc": function(cm) {
+                "Esc": function (cm) {
                     if (cm.getOption("fullScreen")) {
                         cm.setOption("fullScreen", false);
                     }
                 },
-                "F11": function(cm) {
+                "F11": function (cm) {
                     cm.setOption("fullScreen", !cm.getOption("fullScreen"));
                 },
                 "Ctrl-G": "gotoLine",
@@ -269,16 +265,16 @@ var editors = {
                 "Ctrl-D": "doNothing", // 取消默认的 deleteLine
                 "Ctrl-B": "jumpToDecl",
                 "Ctrl-S": function () {
-                      wide.saveFile();
+                    wide.saveFile();
                 },
                 "Shift-Alt-F": function () {
-                     wide.fmt();
+                    wide.fmt();
                 },
                 "Alt-F7": "findUsages"
             }
         });
 
-        editor.on('cursorActivity', function(cm) {
+        editor.on('cursorActivity', function (cm) {
             var cursor = cm.getCursor();
 
             $("#footer-cursor").text('|   ' + (cursor.line + 1) + ':' + (cursor.ch + 1) + '   |');
diff --git a/static/js/tree.js b/static/js/tree.js
index 2aa6ec3..9af1139 100644
--- a/static/js/tree.js
+++ b/static/js/tree.js
@@ -1,6 +1,6 @@
 var tree = {
     // 递归获取当前节点展开中的最后一个节点
-    getCurrentNodeLastNode: function(node) {
+    getCurrentNodeLastNode: function (node) {
         var returnNode = node.children[node.children.length - 1];
         if (returnNode.open) {
             return tree.getCurrentNodeLastNode(returnNode);
@@ -9,7 +9,7 @@ var tree = {
         }
     },
     // 按照树展现获取下一个节点
-    getNextShowNode: function(node) {
+    getNextShowNode: function (node) {
         if (node.level !== 0) {
             if (node.getParentNode().getNextNode()) {
                 return node.getParentNode().getNextNode();
@@ -20,7 +20,7 @@ var tree = {
             return node.getNextNode();
         }
     },
-    isBottomNode: function(node) {
+    isBottomNode: function (node) {
         if (node.open) {
             return false;
         }
@@ -39,7 +39,7 @@ var tree = {
             }
         }
     },
-    getTIdByPath: function(path) {
+    getTIdByPath: function (path) {
         var nodes = tree.fileTree.transformToArray(tree.fileTree.getNodes());
         for (var i = 0, ii = nodes.length; i < ii; i++) {
             if (nodes[i].path === path) {
@@ -50,7 +50,7 @@ var tree = {
         return undefined;
     },
     fileTree: undefined,
-    _isParents: function(tId, parentTId) {
+    _isParents: function (tId, parentTId) {
         var node = tree.fileTree.getNodeByTId(tId);
         if (!node || !node.parentTId) {
             return false;
@@ -62,23 +62,23 @@ var tree = {
             }
         }
     },
-    newFile: function() {
+    newFile: function () {
         $("#dirRMenu").hide();
         var name = prompt("Name", "");
         if (!name) {
             return false;
         }
 
-        var request = {
-            path: wide.curNode.path + '\\' + name,
-            fileType: "f"
-        };
+        var request = newWideRequest();
+        request.path = wide.curNode.path + '\\' + name;
+        request.fileType = "f";
+
         $.ajax({
             type: 'POST',
             url: '/file/new',
             data: JSON.stringify(request),
             dataType: "json",
-            success: function(data) {
+            success: function (data) {
                 if (!data.succ) {
                     return false;
                 }
@@ -126,23 +126,23 @@ var tree = {
             }
         });
     },
-    newDir: function() {
+    newDir: function () {
         $("#dirRMenu").hide();
         var name = prompt("Name", "");
         if (!name) {
             return false;
         }
 
-        var request = {
-            path: wide.curNode.path + '\\' + name,
-            fileType: "d"
-        };
+        var request = newWideRequest();
+        request.path = wide.curNode.path + '\\' + name;
+        request.fileType = "d";
+
         $.ajax({
             type: 'POST',
             url: '/file/new',
             data: JSON.stringify(request),
             dataType: "json",
-            success: function(data) {
+            success: function (data) {
                 if (!data.succ) {
                     return false;
                 }
@@ -154,22 +154,23 @@ var tree = {
             }
         });
     },
-    removeIt: function() {
+    removeIt: function () {
         $("#dirRMenu").hide();
         $("#fileRMenu").hide();
 
         if (!confirm("Remove it?")) {
             return;
         }
-        var request = {
-            path: wide.curNode.path
-        };
+
+        var request = newWideRequest();
+        request.path = wide.curNode.path;
+
         $.ajax({
             type: 'POST',
             url: '/file/remove',
             data: JSON.stringify(request),
             dataType: "json",
-            success: function(data) {
+            success: function (data) {
                 if (!data.succ) {
                     return false;
                 }
@@ -196,12 +197,15 @@ var tree = {
             }
         });
     },
-    init: function() {
+    init: function () {
+        var request = newWideRequest();
+
         $.ajax({
-            type: 'GET',
+            type: 'POST',
             url: '/files',
+            data: JSON.stringify(request),
             dataType: "json",
-            success: function(data) {
+            success: function (data) {
                 if (data.succ) {
                     var dirRMenu = $("#dirRMenu");
                     var fileRMenu = $("#fileRMenu");
@@ -210,7 +214,7 @@ var tree = {
                             selectedMulti: false
                         },
                         callback: {
-                            onRightClick: function(event, treeId, treeNode) {
+                            onRightClick: function (event, treeId, treeNode) {
                                 if (treeNode) {
                                     wide.curNode = treeNode;
                                     if ("ico-ztree-dir " !== treeNode.iconSkin) { // 如果右击了文件
@@ -230,7 +234,7 @@ var tree = {
                                     }
                                 }
                             },
-                            onClick: function(event, treeId, treeNode, clickFlag) {
+                            onClick: function (event, treeId, treeNode, clickFlag) {
                                 tree._onClick(treeNode);
                             }
                         }
@@ -240,7 +244,7 @@ var tree = {
             }
         });
     },
-    _onClick: function(treeNode) {
+    _onClick: function (treeNode) {
         if (wide.curNode) {
             for (var i = 0, ii = editors.data.length; i < ii; i++) {
                 // 该节点文件已经打开
@@ -256,15 +260,15 @@ var tree = {
         wide.curNode = treeNode;
 
         if ("ico-ztree-dir " !== treeNode.iconSkin) { // 如果单击了文件
-            var request = {
-                path: treeNode.path
-            };
+            var request = newWideRequest();
+            request.path = treeNode.path;
+
             $.ajax({
                 type: 'POST',
                 url: '/file',
                 data: JSON.stringify(request),
                 dataType: "json",
-                success: function(data) {
+                success: function (data) {
                     if (!data.succ) {
                         alert(data.msg);
 
diff --git a/static/js/wide.js b/static/js/wide.js
index 194615c..7662874 100644
--- a/static/js/wide.js
+++ b/static/js/wide.js
@@ -12,9 +12,8 @@ outputWS.onmessage = function(e) {
     }
 
     if ('run' === data.nextCmd) {
-        var request = {
-            executable: data.executable
-        };
+        var request = newWideRequest();
+        request.executable = data.executable;
 
         $.ajax({
             type: 'POST',
@@ -80,7 +79,7 @@ var wide = {
     },
     init: function() {
         this._initLayout();
-        
+
         this._initBottomWindowGroup();
 
         $("body").bind("mousedown", function(event) {
@@ -101,10 +100,10 @@ var wide = {
 
     },
     saveFile: function() {
-        var request = {
-            file: $(".edit-header .current span:eq(0)").attr("title"),
-            code: wide.curEditor.getValue()
-        };
+        var request = newWideRequest();
+        request.file = $(".edit-header .current span:eq(0)").attr("title");
+        request.code = wide.curEditor.getValue();
+
         $.ajax({
             type: 'POST',
             url: '/file/save',
@@ -128,10 +127,9 @@ var wide = {
     },
     // 构建 & 运行.
     run: function() {
-        var request = {
-            file: $(".edit-header .current span:eq(0)").attr("title"),
-            code: wide.curEditor.getValue()
-        };
+        var request = newWideRequest();
+        request.file = $(".edit-header .current span:eq(0)").attr("title");
+        request.code = wide.curEditor.getValue();
 
         // TODO: 修改 [构建&运行] 图标状态为不可用状态
 
@@ -148,9 +146,8 @@ var wide = {
         });
     },
     goget: function() {
-        var request = {
-            file: $(".edit-header .current span:eq(0)").attr("title")
-        };
+        var request = newWideRequest();
+        request.file = $(".edit-header .current span:eq(0)").attr("title");
 
         $.ajax({
             type: 'POST',
@@ -165,10 +162,9 @@ var wide = {
         });
     },
     goinstall: function() {
-        var request = {
-            file: $(".edit-header .current span:eq(0)").attr("title"),
-            code: wide.curEditor.getValue()
-        };
+        var request = newWideRequest();
+        request.file = $(".edit-header .current span:eq(0)").attr("title");
+        request.code = wide.curEditor.getValue();
 
         $.ajax({
             type: 'POST',
@@ -186,12 +182,11 @@ var wide = {
         var path = $(".edit-header .current span:eq(0)").attr("title");
         var mode = wide.curNode.mode;
 
-        var request = {
-            file: path,
-            code: wide.curEditor.getValue(),
-            cursorLine: wide.curEditor.getCursor().line,
-            cursorCh: wide.curEditor.getCursor().ch
-        };
+        var request = newWideRequest();
+        request.file = path;
+        request.code = wide.curEditor.getValue();
+        request.cursorLine = wide.curEditor.getCursor().line;
+        request.cursorCh = wide.curEditor.getCursor().ch;
 
         switch (mode) {
             case "text/x-go":
diff --git a/user/sessions.go b/user/sessions.go
index 162596e..559be74 100644
--- a/user/sessions.go
+++ b/user/sessions.go
@@ -5,6 +5,7 @@ import (
 	"strconv"
 	"time"
 
+	"github.com/golang/glog"
 	"github.com/gorilla/sessions"
 )
 
@@ -17,23 +18,55 @@ var Session = sessions.NewCookieStore([]byte("BEYOND"))
 
 // Wide 会话，对应一个浏览器 tab.
 type WideSession struct {
-	Id      string    // 唯一标识
-	State   int       // 状态
-	Created time.Time // 创建时间
-	Updated time.Time // 最近一次使用时间
+	Id            string    // 唯一标识
+	HTTPSessionId string    // HTTP 会话 id
+	State         int       // 状态
+	Created       time.Time // 创建时间
+	Updated       time.Time // 最近一次使用时间
 }
 
+type Sessions []*WideSession
+
+// 所有 Wide 会话集.
+var WideSessions Sessions
+
 // 创建一个 Wide 会话.
-func NewSession() *WideSession {
+func (sessions *Sessions) New() *WideSession {
 	rand.Seed(time.Now().UnixNano())
 
 	id := strconv.Itoa(rand.Int())
 	now := time.Now()
 
-	return &WideSession{
+	ret := &WideSession{
 		Id:      id,
 		State:   SessionStateActive,
 		Created: now,
 		Updated: now,
 	}
+
+	*sessions = append(*sessions, ret)
+
+	return ret
+}
+
+// 移除 Wide 会话.
+func (sessions *Sessions) Remove(sid string) {
+	for i, s := range *sessions {
+		if s.Id == sid {
+			*sessions = append((*sessions)[:i], (*sessions)[i+1:]...)
+
+			glog.V(3).Infof("Has [%d] wide sessions currently", len(*sessions))
+		}
+	}
+}
+
+// 移除 HTTP 会话关联的所有 Wide 会话.
+func (sessions *Sessions) RemoveByHTTPSid(httpSessionId string) {
+	for i, s := range *sessions {
+		if s.HTTPSessionId == httpSessionId {
+			*sessions = append((*sessions)[:i], (*sessions)[i+1:]...)
+
+			glog.V(3).Infof("Has [%d] wide sessions currently", len(*sessions))
+		}
+	}
 }
diff --git a/view/index.html b/view/index.html
index 88df788..d8e2bfb 100644
--- a/view/index.html
+++ b/view/index.html
@@ -2,7 +2,7 @@
 <html>
     <head>
         <meta charset="UTF-8">
-        <title>{{.i18n.wide}} - {{.session.Id}}</title>
+        <title>{{.i18n.wide}}</title>
         <link rel="stylesheet" href="{{.conf.StaticServer}}/static/js/lib/codemirror-4.5/codemirror.css">
         <link rel="stylesheet" href="{{.conf.StaticServer}}/static/js/lib/codemirror-4.5/addon/hint/show-hint.css">
         <link rel="stylesheet" href="{{.conf.StaticServer}}/static/js/lib/codemirror-4.5/addon/lint/lint.css">
@@ -168,11 +168,22 @@
         <script type="text/javascript">
                     var config = {
                     channel: {
-                    editor: '{{.conf.EditorChannel}}',
-                            shell: '{{.conf.ShellChannel}}',
-                            output: '{{.conf.OutputChannel}}'
+                    editor: {{.conf.EditorChannel}},
+                            shell: {{.conf.ShellChannel}},
+                            output: {{.conf.OutputChannel}}
+                    },
+                            wideSessionId: {{.session.Id}}
+                    };
+                    // 发往 Wide 的所有 AJAX 请求需要使用该函数创建请求参数.
+                    function newWideRequest() {
+                        var ret = {
+                            sid: config.wideSessionId
+                        }
+                        
+                        return ret;
                     }
-                    };</script>
+
+        </script>
         <script type="text/javascript" src="{{.conf.StaticServer}}/static/js/lib/jquery-2.1.1.min.js"></script>
         <script type="text/javascript" src="{{.conf.StaticServer}}/static/js/lib/reconnecting-websocket.js"></script>
         <script type="text/javascript" src="{{.conf.StaticServer}}/static/js/lib/ztree/jquery.ztree.all-3.5.min.js"></script>