diff --git a/css/modals.css b/css/modals.css
index 9aedb6a..3548831 100644
--- a/css/modals.css
+++ b/css/modals.css
@@ -34,11 +34,15 @@
   width: 80px;
 }
 
-.selectFiles > div > .control-label {
+.selectFiles div .control-label {
   font-weight: normal;
   margin-left: 30px;
 }
 
-.selectFiles > div > .controls {
+.selectFiles div .controls {
   margin-left: 30px;
 }
+
+.selectFiles div.recursivedir {
+  width: 100%;
+}
\ No newline at end of file
diff --git a/index.html b/index.html
index 18551bc..4caa7af 100644
--- a/index.html
+++ b/index.html
@@ -41,6 +41,7 @@
 
   <script src="js/directives/chunkbar.js"></script>
   <script src="js/directives/dgraph.js"></script>
+  <script src="js/directives/fileselect.js"></script>
   <script src="js/directives/fselect.js"></script>
   <script src="js/directives/textarea.js"></script>
 
@@ -1030,6 +1031,39 @@
 </script>
 <!-- }}} -->
 
+<!-- {{{ select files checkbox modal -->
+<script type="text/ng-template" id="selectFilesCheckBox.html">
+  <div ng-repeat="(folderName,folder) in files.dirs">
+    <!--recursive folder-->
+
+    <div class="controls">
+      <!--click to toggle show the subfolders and files-->
+      <div class="checkbox" data-ng-click="folder.show=!folder.show">
+        <!-- The value of indeterminate="" can be bound to any angular expression -->
+        <input type="checkbox" data-ng-model="folder.selected" data-ng-click="$event.stopPropagation()" indeterminate/>{{folderName}}
+        <span ng-show="!folder.show" class="control-label">{{ 'click the text to expand the folder' | translate }}</span>
+        <span ng-show="folder.show" class="control-label">{{ 'click the text to collapse the folder' | translate }}</span>
+      </div>
+      <div ng-show="folder.show" class="form-group selectFiles recursivedir" ng-include="'selectFilesCheckBox.html'" ng-init="files=folder">
+      </div>
+    </div>
+  </div>
+
+  <div ng-repeat="file in files.files">
+    <!--files-->
+    <label class="control-label">{{ 'Select to download' | translate }}</label>
+
+    <div class="controls">
+      <label class="checkbox">
+        <input type="checkbox" data-ng-model="file.selected" indeterminate="false"/>{{file.relpath}}
+      </label>
+    </div>
+    <br/>
+    <br/>
+  </div>
+</script>
+<!-- }}} -->
+
 <!-- {{{ select file modal -->
 <script type="text/ng-template" id="selectFiles.html">
   <div class="modal-header">
@@ -1039,17 +1073,7 @@
 
   <form class="form-horizontal modal-body">
     <fieldset>
-      <div class="form-group selectFiles">
-        <div ng-repeat="file in selectFiles.files">
-          <label class="control-label">{{ 'Select to download' | translate }}</label>
-
-          <div class="controls">
-            <label class="checkbox">
-              <input type="checkbox" ng-model="file.selected"/>{{file.relpath}}
-            </label>
-          </div>
-          <br /><br />
-        </div>
+      <div class="form-group selectFiles" ng-include="'selectFilesCheckBox.html'" ng-init="files=selectFiles.groupedFiles">
       </div>
     </fieldset>
   </form>
diff --git a/js/ctrls/modal.js b/js/ctrls/modal.js
index 0387038..0e220a1 100644
--- a/js/ctrls/modal.js
+++ b/js/ctrls/modal.js
@@ -123,6 +123,37 @@ angular
       var self = this;
 
 	  this.files = _.cloneDeep(files);
+      var groupFiles = function (files) {
+          // sort files alphabetically
+          files.sort(function (a, b) {
+              if (a.relpath < b.relpath) {
+                  return -1;
+              } else {
+                  return 1;
+              }
+          });
+          function OrganizedFolder () {
+              this.dirs = {};
+              this.files = [];
+              this.show = false;
+              this.selected = true;
+          }
+          var folder = new OrganizedFolder(), tmp;
+          for (var i = 0; i < files.length; i++) {
+              tmp = folder;
+              var str = files[i].relpath;
+              var arr = str.split("/");
+              for (var j = 0; j < arr.length - 1; j++) {
+                  if (!tmp.dirs[arr[j]]) {
+                      tmp.dirs[arr[j]] = new OrganizedFolder();
+                  }
+                  tmp = tmp.dirs[arr[j]];
+              }
+              tmp.files.push(files[i]);
+          }
+          return folder;
+      };
+      this.groupedFiles = groupFiles(this.files);
       this.inst = $modal.open({
         templateUrl: "selectFiles.html",
         scope: scope,
diff --git a/js/directives/fileselect.js b/js/directives/fileselect.js
new file mode 100644
index 0000000..08904c3
--- /dev/null
+++ b/js/directives/fileselect.js
@@ -0,0 +1,126 @@
+// watches changes in the file upload control (input[file]) and
+// puts the files selected in an attribute
+var app = angular.module("webui.directives.fileselect", ["webui.services.deps"]);
+app.directive("indeterminate", [
+    "$parse", function syncInput (parse) {
+        return {
+            require  : "ngModel",
+            // Restrict the directive so it can only be used as an attribute
+            restrict : "A",
+
+            link : function link (scope, elem, attr, ngModelCtrl) {
+                // Whenever the bound value of the attribute changes we update
+                // use upward emit notification for change to prevent the performance penalty bring by $scope.$watch
+                var getter = parse(attr["ngModel"]);
+                // var setter = getter.assign;
+                var children = []; // cache children input
+                var cacheSelectedSubInputNumber = 0;
+                var cacheNoSelectedSubInputNumber = 0;
+                var get = function () {
+                    return getter(scope);
+                };
+                // the internal 'indeterminate' flag on the attached dom element
+                var setIndeterminateState = function (newValue) {
+                    elem.prop("indeterminate", newValue);
+                };
+                var setModelValueWithSideEffect = function (newVal) { // will cause to emit corresponding events
+                    ngModelCtrl.$setViewValue(newVal);
+                    ngModelCtrl.$render();
+                };
+                var passIfIsLeafChild = function (callback) { // ensure to execute callback only when this input has one or more subinputs
+                    return function () {
+                        if (children.length > 0) {
+                            callback.apply(this, arguments);
+                        }
+                    };
+                };
+                var passIfNotIsLeafChild = function (callback) { // ensure to execute callback only when this input hasn't any subinput
+                    return function () {
+                        if (children.length === 0) {
+                            callback.apply(this, arguments);
+                        }
+                    };
+                };
+                var passThroughThisScope = function (callback) { // pass through the event from the scope where they sent
+                    return function (event) {
+                        if (event.targetScope !== event.currentScope) {
+                            return callback.apply(this, arguments);
+                        }
+                    };
+                };
+                var passIfIsIndeterminate = function (callback) { // pass through the event when this input is indeterminate
+                    return function () {
+                        if (!elem.prop("indeterminate")) {
+                            return callback.apply(this, arguments);
+                        }
+                    };
+                };
+                /* var catchEventOnlyOnce = function (callback) { // only fire once, and stop event's propagation
+                 return function (event) {
+                 callback.apply(this, arguments);
+                 return event.stopPropagation();
+                 };
+                 }; */
+                if (attr["indeterminate"] && parse(attr["indeterminate"]).constant) {
+                    setIndeterminateState(scope.$eval(attr["indeterminate"])); // set to default value (set in template)
+                }
+                if (attr["indeterminate"] && parse(attr["indeterminate"]).constant && !scope.$eval(attr["indeterminate"])) {
+                    // when this input wont have subinput, they will only receive parent change and emit child change event
+                    ngModelCtrl.$viewChangeListeners.push(passIfNotIsLeafChild(function () {
+                        scope.$emit("childSelectedChange", get()); // notifies parents to change their state
+                    }));
+                    scope.$on("ParentSelectedChange", passThroughThisScope(passIfNotIsLeafChild(
+                        function (event, newVal) {
+                            setModelValueWithSideEffect(newVal); // set value to parent's value; this will cause listener to emit childChange event; this won't be a infinite loop
+                        })));
+                    // init first time and only once
+                    scope.$emit("i'm child input", get); // traverses upwards toward the root scope notifying the listeners for keep reference to this input's value
+                    scope.$emit("childSelectedChange", get()); // force emitted, and force the parent change their state base on children at first time
+                } else {
+                    // establish parent-child's relation
+                    // listen for the child emitted token
+                    scope.$on("i'm child input", passThroughThisScope( // can't apply pass passIfIsLeafChild, at beginning all has not child input
+                        function (event, child) {
+                            children.push(child);
+                        })
+                    );
+                    var updateBaseOnChildrenState = function (event, newChildValue) {
+                        if ((cacheSelectedSubInputNumber + cacheNoSelectedSubInputNumber) !== children.length) {
+                            // cache childern state
+                            cacheSelectedSubInputNumber = 0;
+                            cacheNoSelectedSubInputNumber = 0;
+                            for (var i = 0; i < children.length; i++) {
+                                if (children[i]()) {
+                                    cacheSelectedSubInputNumber += 1;
+                                } else {
+                                    cacheNoSelectedSubInputNumber += 1;
+                                }
+                            }
+                        } else {
+                            // no need for recalculated children state
+                            // just make a few change to cache value
+                            if (newChildValue) {
+                                cacheSelectedSubInputNumber++;
+                                cacheNoSelectedSubInputNumber--;
+                            } else {
+                                cacheSelectedSubInputNumber--;
+                                cacheNoSelectedSubInputNumber++;
+                            }
+                        }
+                        var allSelected = (cacheNoSelectedSubInputNumber === 0); // if doesn't has any no selected input
+                        var anySeleted = (cacheSelectedSubInputNumber > 0);
+                        setIndeterminateState(allSelected !== anySeleted); // if at least one is selected, but not all then set input property indeterminate to true
+                        setModelValueWithSideEffect(allSelected); // change binding model value and trigger onchange event
+                    };
+                    // is not leaf input, Only receive child change and parent change event
+                    ngModelCtrl.$viewChangeListeners.push(passIfIsLeafChild(passIfIsIndeterminate(function () {
+                        // emit when input property indeterminate is false, prevent recursively emitting event from parent to children, children to parent
+                        scope.$broadcast("ParentSelectedChange", get());
+                    })));
+                    // reset input state base on children inputs
+                    scope.$on("childSelectedChange", passThroughThisScope(passIfIsLeafChild(updateBaseOnChildrenState)));
+                }
+            }
+        };
+    }
+]);
diff --git a/js/init.js b/js/init.js
index 72fe0ff..ce964e7 100644
--- a/js/init.js
+++ b/js/init.js
@@ -4,7 +4,7 @@ var webui = angular.module('webui', [
   'webui.services.modals', 'webui.services.alerts',
   'webui.services.settings', 'webui.services.settings.filters',
   'webui.filters.bytes','webui.filters.url',
-  'webui.directives.chunkbar', 'webui.directives.dgraph', 'webui.directives.fselect',
+  'webui.directives.chunkbar', 'webui.directives.dgraph', 'webui.directives.fselect', "webui.directives.fileselect",
   'webui.ctrls.download', 'webui.ctrls.nav', 'webui.ctrls.modal', 'webui.ctrls.alert',
   'webui.ctrls.props',
   // external deps
diff --git a/js/services/rpc/jsoncall.js b/js/services/rpc/jsoncall.js
index 4642467..4c15f99 100644
--- a/js/services/rpc/jsoncall.js
+++ b/js/services/rpc/jsoncall.js
@@ -7,28 +7,24 @@ angular
       this.avgTimeout = 2000;
       this.serverConf = conf;
     },
-    encode: function(obj) {
-      return base64.btoa( JSON.stringify(obj) );
-    },
     ariaRequest: function(url, funcName, params, success, error) {
       var startTime = new Date();
       var conn = this;
-      $.ajax({
+      $.post({
         url: url,
         timeout: this.avgTimeout,
-        data: {
+        contentType: 'application/json',
+        data: JSON.stringify({
           jsonrpc: 2.0,
           id: 'webui',
           method: funcName,
-          params: params && params.length ? this.encode(params) : undefined
-        },
+          params: params
+        }),
         success: function(data) {
           conn.avgTimeout =  2000 + 3 * (new Date() - startTime);
           return success(data);
         },
-        error: error,
-        dataType: 'jsonp',
-        jsonp: 'jsoncallback'
+        error: error
       });
     },
     invoke: function(opts) {