diff --git a/module/common/view/action.html.php b/module/common/view/action.html.php
index b07da8587d..44b3af8cfe 100755
--- a/module/common/view/action.html.php
+++ b/module/common/view/action.html.php
@@ -7,6 +7,7 @@
 <style>
 .histories-list > li {word-break: break-word; word-wrap: break-word;}
 .history-changes del {padding-left: 3px;}
+#actionbox > .detail-content {width:100%; max-height: 800px; overflow: scroll;}
 </style>
   <script>
   $(function()
diff --git a/module/execution/control.php b/module/execution/control.php
index 716142fa99..1750f21d99 100644
--- a/module/execution/control.php
+++ b/module/execution/control.php
@@ -1733,6 +1733,7 @@ class execution extends control
     public function batchEdit($executionID = 0)
     {
         $this->app->loadLang('stage');
+        $this->app->loadLang('programplan');
 
         if($this->post->names)
         {
diff --git a/module/execution/view/batchedit.html.php b/module/execution/view/batchedit.html.php
index 28171c1ef2..26d3631ce8 100755
--- a/module/execution/view/batchedit.html.php
+++ b/module/execution/view/batchedit.html.php
@@ -44,7 +44,7 @@
   $status = $from == 'execution' ? 'execStatus' : 'status';
 
   ?>
-  <form class='main-form' method='post' target='hiddenwin' action='<?php echo inLink('batchEdit');?>'>
+  <form class='main-form' method='post' target='hiddenwin' id='executionForm' action='<?php echo inLink('batchEdit');?>'>
     <div class="table-responsive">
       <table class='table table-form'>
         <thead>
@@ -85,7 +85,7 @@
             <?php if($config->systemMode == 'new' and isset($project) and $project->model == 'scrum'):?>
             <td class='text-left' style='overflow:visible'><?php echo html::select("projects[$executionID]", $allProjects, $executions[$executionID]->project, "class='form-control picker-select' data-lastselected='{$executions[$executionID]->project}' onchange='changeProject(this, $executionID, {$executions[$executionID]->project})'");?></td>
             <?php endif;?>
-            <td title='<?php echo $executions[$executionID]->name?>'><?php echo html::input("names[$executionID]", $executions[$executionID]->name, "class='form-control'");?></td>
+            <td title='<?php echo $executions[$executionID]->name?>'><?php echo html::input("names[$executionID]", $executions[$executionID]->name, "id='names{$executionID}' class='form-control'");?></td>
             <td><?php echo html::input("codes[$executionID]",     $executions[$executionID]->code, "class='form-control'");?></td>
             <td class='text-left<?php echo zget($visibleFields, 'PM',  ' hidden')?>' style='overflow:visible'><?php echo html::select("PMs[$executionID]", $pmUsers, $executions[$executionID]->PM, "class='form-control picker-select'");?></td>
             <td class='text-left<?php echo zget($visibleFields, 'PO', ' hidden')?>' style='overflow:visible'><?php echo html::select("POs[$executionID]", $poUsers, $executions[$executionID]->PO, "class='form-control picker-select'");?></td>
@@ -104,8 +104,8 @@
               ?>
             </td>
             <td class='<?php echo zget($visibleFields, 'status', 'hidden')?>'><?php echo html::select("statuses[$executionID]", $lang->execution->statusList, $executions[$executionID]->status, 'class=form-control');?></td>
-            <td><?php echo html::input("begins[$executionID]", $executions[$executionID]->begin, "class='form-control form-date' onchange='computeWorkDays(this.id)'");?></td>
-            <td><?php echo html::input("ends[$executionID]",   $executions[$executionID]->end,   "class='form-control form-date' onchange='computeWorkDays(this.id)'");?></td>
+            <td><?php echo html::input("begins[$executionID]", $executions[$executionID]->begin, "id='begins{$executionID}' class='form-control form-date' onchange='computeWorkDays(this.id)'");?></td>
+            <td><?php echo html::input("ends[$executionID]",   $executions[$executionID]->end,   "id='ends{$executionID}' class='form-control form-date' onchange='computeWorkDays(this.id)'");?></td>
             <td class='<?php echo zget($visibleFields, 'desc', 'hidden')?>'>    <?php echo html::textarea("descs[$executionID]",  $executions[$executionID]->desc,  "rows='1' class='form-control autosize'");?></td>
             <td class='<?php echo zget($visibleFields, 'teamname', 'hidden')?>'><?php echo html::input("teams[$executionID]",  $executions[$executionID]->team,  "class='form-control'");?></td>
             <td class='<?php echo zget($visibleFields, 'days',     'hidden')?>'>
@@ -136,6 +136,63 @@
     </div>
   </form>
 </div>
-<?php js::set('weekend', $config->execution->weekend);?>
-<?php js::set('confirmSync', $lang->execution->confirmSync);?>
+<?php
+js::set('weekend', $config->execution->weekend);
+js::set('confirmSync', $lang->execution->confirmSync);
+js::set('emptyBegin', $lang->programplan->emptyBegin);
+js::set('emptyEnd', $lang->programplan->emptyEnd);
+js::set('planFinishSmall', $lang->programplan->error->planFinishSmall);
+?>
+
+<script>
+$('#executionForm').submit(function()
+{
+    var submitForm = true;
+    $('input[name^=begins]').each(function()
+    {
+        var beginDate   = $(this).val();
+        var beginDateID = $(this).attr('id');
+
+        var nameID    = beginDateID.replace('begins', 'names');
+        var endDateID = beginDateID.replace('begins', 'ends');
+        $('#help' + beginDateID).remove();
+        $('#help' + endDateID).remove();
+
+        // Invalid data is skipped.
+        var nameVal = $('#' + nameID).val()
+        if(!nameVal) return;
+
+        // Check if the begin date is empty.
+        if(!beginDate)
+        {
+            submitForm = false;
+            var emptyBeginHtml = '<div id="help' + beginDateID + '" class="text-danger help-text">' + emptyBegin + '</div>';
+            $(this).after(emptyBeginHtml);
+            alert(emptyBegin);
+            return false;
+        }
+
+        var endDate = $('#' + endDateID).val();
+        if(!endDate)
+        {
+            submitForm = false;
+            var emptyEndHtml = '<div id="help' + endDateID + '" class="text-danger help-text">' + emptyEnd + '</div>';
+            $('#' + endDateID).after(emptyEndHtml);
+            alert(emptyEnd);
+            return false;
+        }
+
+        if(endDate < beginDate)
+        {
+            submitForm = false;
+            var emptyEndHtml = '<div id="help' + endDateID + '" class="text-danger help-text">' + planFinishSmall + '</div>';
+            $('#' + endDateID).after(emptyEndHtml);
+            alert(planFinishSmall);
+            return false;
+        }
+    });
+
+    if(!submitForm) return false;
+});
+</script>
 <?php include '../../common/view/footer.html.php';?>
diff --git a/module/kanban/js/common.js b/module/kanban/js/common.js
index 8b602a5482..7537e5215e 100644
--- a/module/kanban/js/common.js
+++ b/module/kanban/js/common.js
@@ -14,6 +14,7 @@ function setMailto(field, value)
         $('#team').replaceWith(data);
         $('#team_chosen').remove();
         $('#team').chosen();
+        $('.picker.picker-multi').remove();
     })
 }
 
diff --git a/module/productplan/view/browsebylist.html.php b/module/productplan/view/browsebylist.html.php
index f399b26b96..01b5627e58 100644
--- a/module/productplan/view/browsebylist.html.php
+++ b/module/productplan/view/browsebylist.html.php
@@ -9,7 +9,11 @@
  * @link        https://www.zentao.net
  */
 ?>
-<style> .c-actions {width: 240px;} </style>
+<style>
+.c-actions {width: 250px;}
+#productplanList .c-actions .btn+.btn {margin-left: -1px;}
+#productplanList .c-actions .btn {display: block; float: left;}
+</style>
 <div id="mainMenu" class="clearfix">
   <div class="btn-toolbar pull-left">
     <?php foreach(customModel::getFeatureMenu($this->moduleName, $this->methodName) as $menuItem):?>
diff --git a/module/programplan/view/create.html.php b/module/programplan/view/create.html.php
index 4a76ec2dbf..36dd7b2c99 100644
--- a/module/programplan/view/create.html.php
+++ b/module/programplan/view/create.html.php
@@ -205,5 +205,63 @@
     </tr>
   </table>
 </div>
-<script>$('[data-toggle="popover"]').popover();</script>
+<?php
+js::set('emptyBegin', $lang->programplan->emptyBegin);
+js::set('emptyEnd', $lang->programplan->emptyEnd);
+js::set('planFinishSmall', $lang->programplan->error->planFinishSmall);
+?>
+<script>
+$('[data-toggle="popover"]').popover();
+
+$('#planForm').submit(function()
+{
+    var submitForm = true;
+    $('input[name^=begin]').each(function()
+    {
+        var beginDate   = $(this).val();
+        var beginDateID = $(this).attr('id');
+        if(beginDateID == 'begin%i%') return;
+
+        var nameID    = beginDateID.replace('begin', 'names');
+        var endDateID = beginDateID.replace('begin', 'end');
+        $('#help' + beginDateID).remove();
+        $('#help' + endDateID).remove();
+
+        // Invalid data is skipped.
+        var nameVal = $('#' + nameID).val()
+        if(!nameVal) return;
+
+        // Check if the begin date is empty.
+        if(!beginDate)
+        {
+            submitForm = false;
+            var emptyBeginHtml = '<div id="help' + beginDateID + '" class="text-danger help-text">' + emptyBegin + '</div>';
+            $(this).after(emptyBeginHtml);
+            alert(emptyBegin);
+            return false;
+        }
+
+        var endDate = $('#' + endDateID).val();
+        if(!endDate)
+        {
+            submitForm = false;
+            var emptyEndHtml = '<div id="help' + endDateID + '" class="text-danger help-text">' + emptyEnd + '</div>';
+            $('#' + endDateID).after(emptyEndHtml);
+            alert(emptyEnd);
+            return false;
+        }
+
+        if(endDate < beginDate)
+        {
+            submitForm = false;
+            var emptyEndHtml = '<div id="help' + endDateID + '" class="text-danger help-text">' + planFinishSmall + '</div>';
+            $('#' + endDateID).after(emptyEndHtml);
+            alert(planFinishSmall);
+            return false;
+        }
+    });
+
+    if(!submitForm) return false;
+});
+</script>
 <?php include '../../common/view/footer.html.php';?>
diff --git a/module/user/control.php b/module/user/control.php
index d2691b7bf8..b99d0588fc 100755
--- a/module/user/control.php
+++ b/module/user/control.php
@@ -1213,7 +1213,7 @@ class user extends control
     {
         $contactList = $this->user->getContactLists($this->app->user->account, 'withnote');
         if(empty($contactList)) return false;
-        return print(html::select('', $contactList, '', "class='form-control' onchange=\"setMailto('$dropdownName', this.value)\""));
+        return print(html::select('contactListMenu', $contactList, '', "class='form-control' onchange=\"setMailto('$dropdownName', this.value)\""));
     }
 
     /**