diff --git a/module/projectrelease/control.php b/module/projectrelease/control.php
index 8879d19699..69e076f360 100644
--- a/module/projectrelease/control.php
+++ b/module/projectrelease/control.php
@@ -228,6 +228,51 @@ class projectrelease extends control
         $this->display();
     }
 
+    /**
+     * Delete a release.
+     *
+     * @param  int    $releaseID
+     * @param  string $confirm      yes|no
+     * @access public
+     * @return void
+     */
+    public function delete($releaseID, $confirm = 'no')
+    {
+        if($confirm == 'no')
+        {
+            die(js::confirm($this->lang->release->confirmDelete, $this->createLink('projectrelease', 'delete', "releaseID=$releaseID&confirm=yes")));
+        }
+        else
+        {
+            $this->release->delete(TABLE_RELEASE, $releaseID);
+
+            $release = $this->dao->select('*')->from(TABLE_RELEASE)->where('id')->eq((int)$releaseID)->fetch();
+            $build   = $this->dao->select('*')->from(TABLE_BUILD)->where('id')->eq((int)$release->build)->fetch();
+            if(empty($build->project)) $this->loadModel('build')->delete(TABLE_BUILD, $build->id);
+
+            $this->executeHooks($releaseID);
+
+            /* if ajax request, send result. */
+            if($this->server->ajax)
+            {
+                if(dao::isError())
+                {
+                    $response['result']  = 'fail';
+                    $response['message'] = dao::getError();
+                }
+                else
+                {
+                    $response['result']  = 'success';
+                    $response['message'] = '';
+                    $release = $this->release->getById($releaseID);
+                    $this->dao->update(TABLE_BUILD)->set('deleted')->eq(1)->where('id')->eq($release->build)->andWhere('name')->eq($release->name)->exec();
+                }
+                $this->send($response);
+            }
+            die(js::locate($this->session->releaseList, 'parent'));
+        }
+    }
+
     /**
      * Export the stories of release to HTML.
      * 
diff --git a/module/projectrelease/view/browse.html.php b/module/projectrelease/view/browse.html.php
index ad6eb66b8e..3b9181b9bd 100644
--- a/module/projectrelease/view/browse.html.php
+++ b/module/projectrelease/view/browse.html.php
@@ -32,7 +32,7 @@
   <div class="table-empty-tip">
     <p>
       <span class="text-muted"><?php echo $lang->release->noRelease;?></span>
-      <?php if(common::canModify('product', $product) and common::hasPriv('release', 'create')):?>
+      <?php if(common::canModify('product', $product) and common::hasPriv('projectrelease', 'create')):?>
       <?php echo html::a($this->createLink('projectrelease', 'create', "productID=$product->id&branch=$branch"), "<i class='icon icon-plus'></i> " . $lang->release->create, '', "class='btn btn-info'");?>
       <?php endif;?>
     </p>
@@ -58,7 +58,7 @@
     </thead>
     <tbody>
       <?php foreach($releases as $release):?>
-      <?php $canBeChanged = common::canBeChanged('release', $release);?>
+      <?php $canBeChanged = common::canBeChanged('projectrelease', $release);?>
       <tr>
         <td><?php echo html::a(inlink('view', "releaseID=$release->id"), sprintf('%03d', $release->id));?></td>
         <td>
@@ -81,17 +81,17 @@
           <?php
           if($canBeChanged)
           {
-              if(common::hasPriv('release', 'linkStory')) echo html::a(inlink('view', "releaseID=$release->id&type=story&link=true"), '<i class="icon-link"></i> ', '', "class='btn' title='{$lang->release->linkStory}'");
-              if(common::hasPriv('release', 'linkBug')) echo html::a(inlink('view', "releaseID=$release->id&type=bug&link=true"), '<i class="icon-bug"></i> ', '', "class='btn' title='{$lang->release->linkBug}'");
-              if(common::hasPriv('release', 'changeStatus', $release))
+              if(common::hasPriv('projectrelease', 'linkStory')) echo html::a(inlink('view', "releaseID=$release->id&type=story&link=true"), '<i class="icon-link"></i> ', '', "class='btn' title='{$lang->release->linkStory}'");
+              if(common::hasPriv('projectrelease', 'linkBug')) echo html::a(inlink('view', "releaseID=$release->id&type=bug&link=true"), '<i class="icon-bug"></i> ', '', "class='btn' title='{$lang->release->linkBug}'");
+              if(common::hasPriv('projectrelease', 'changeStatus', $release))
               {
                   $changedStatus = $release->status == 'normal' ? 'terminate' : 'normal';
-                  echo html::a($this->createLink('release', 'changeStatus', "releaseID=$release->id&status=$changedStatus"), '<i class="icon-' . ($release->status == 'normal' ? 'pause' : 'play') . '"></i> ', 'hiddenwin', "class='btn' title='{$lang->release->changeStatusList[$changedStatus]}'");
+                  echo html::a($this->createLink('projectrelease', 'changeStatus', "releaseID=$release->id&status=$changedStatus"), '<i class="icon-' . ($release->status == 'normal' ? 'pause' : 'play') . '"></i> ', 'hiddenwin', "class='btn' title='{$lang->release->changeStatusList[$changedStatus]}'");
               }
               common::printIcon('projectrelease', 'edit',   "release=$release->id", $release, 'list');
-              if(common::hasPriv('release', 'delete', $release))
+              if(common::hasPriv('projectrelease', 'delete', $release))
               {
-                  $deleteURL = $this->createLink('release', 'delete', "releaseID=$release->id&confirm=yes");
+                  $deleteURL = $this->createLink('projectrelease', 'delete', "releaseID=$release->id&confirm=yes");
                   echo html::a("javascript:ajaxDelete(\"$deleteURL\", \"releaseList\", confirmDelete)", '<i class="icon-trash"></i>', '', "class='btn' title='{$lang->release->delete}'");
               }
           }
diff --git a/module/projectrelease/view/view.html.php b/module/projectrelease/view/view.html.php
index 16f52a8fe6..d6990ea72e 100644
--- a/module/projectrelease/view/view.html.php
+++ b/module/projectrelease/view/view.html.php
@@ -31,19 +31,19 @@
   </div>
   <div class='btn-toolbar pull-right'>
     <?php
-    $canBeChanged = common::canBeChanged('release', $release);
+    $canBeChanged = common::canBeChanged('projectrelease', $release);
 
     if(!$release->deleted and $canBeChanged)
     {
         echo $this->buildOperateMenu($release, 'view');
 
-        if(common::hasPriv('release', 'changeStatus', $release))
+        if(common::hasPriv('projectrelease', 'changeStatus', $release))
         {
             $changedStatus = $release->status == 'normal' ? 'terminate' : 'normal';
             echo html::a(inlink('changeStatus', "releaseID=$release->id&status=$changedStatus"), '<i class="icon-' . ($release->status == 'normal' ? 'pause' : 'play') . '"></i> ' . $lang->release->changeStatusList[$changedStatus], 'hiddenwin', "class='btn btn-link' title='{$lang->release->changeStatusList[$changedStatus]}'");
         }
-        if(common::hasPriv('release', 'edit'))   echo html::a(inlink('edit',   "releaseID=$release->id"), "<i class='icon-common-edit icon-edit'></i> " . $this->lang->edit, '', "class='btn btn-link' title='{$this->lang->edit}'");
-        if(common::hasPriv('release', 'delete')) echo html::a(inlink('delete', "releaseID=$release->id"), "<i class='icon-common-delete icon-trash'></i> " . $this->lang->delete, '', "class='btn btn-link' title='{$this->lang->delete}' target='hiddenwin'");
+        if(common::hasPriv('projectrelease', 'edit'))   echo html::a(inlink('edit',   "releaseID=$release->id"), "<i class='icon-common-edit icon-edit'></i> " . $this->lang->edit, '', "class='btn btn-link' title='{$this->lang->edit}'");
+        if(common::hasPriv('projectrelease', 'delete')) echo html::a(inlink('delete', "releaseID=$release->id"), "<i class='icon-common-delete icon-trash'></i> " . $this->lang->delete, '', "class='btn btn-link' title='{$this->lang->delete}' target='hiddenwin'");
     }
     ?>
   </div>
@@ -59,19 +59,19 @@
           <li <?php if($type == 'leftBug') echo "class='active'"?>><a href='#leftBugs' data-toggle='tab'><?php echo html::icon($lang->icons['bug'], 'text-red') . ' ' . $lang->release->generatedBugs;?></a></li>
           <li <?php if($type == 'releaseInfo') echo "class='active'"?>><a href='#releaseInfo' data-toggle='tab'><?php echo html::icon($lang->icons['plan'], 'text-info') . ' ' . $lang->release->view;?></a></li>
           <?php if($countStories or $countBugs or $countLeftBugs):?>
-          <li class='pull-right'><div><?php common::printIcon('release', 'export', '', '', 'button', '', '', "export btn-sm");?></div></li>
+          <li class='pull-right'><div><?php common::printIcon('projectrelease', 'export', '', '', 'button', '', '', "export btn-sm");?></div></li>
           <?php endif;?>
         </ul>
         <div class='tab-content'>
           <div class='tab-pane <?php if($type == 'story') echo 'active'?>' id='stories'>
-            <?php if(common::hasPriv('release', 'linkStory') and $canBeChanged):?>
+            <?php if(common::hasPriv('projectrelease', 'linkStory') and $canBeChanged):?>
             <div class='actions'><?php echo html::a("javascript:showLink({$release->id}, \"story\")", '<i class="icon-link"></i> ' . $lang->release->linkStory, '', "class='btn btn-primary'");?></div>
             <div class='linkBox cell hidden'></div>
             <?php endif;?>
             <form class='main-table table-story' method='post' id='linkedStoriesForm' data-ride="table">
               <table class='table has-sort-head' id='storyList'>
                 <?php
-                $canBatchUnlink = common::hasPriv('release', 'batchUnlinkStory');
+                $canBatchUnlink = common::hasPriv('projectrelease', 'batchUnlinkStory');
                 $canBatchClose  = common::hasPriv('story', 'batchClose');
                 ?>
                 <?php $vars = "releaseID={$release->id}&type=story&link=$link&param=$param&orderBy=%s";?>
@@ -122,9 +122,9 @@
                     <td><?php echo $lang->story->stageList[$story->stage];?></td>
                     <td class='c-actions'>
                       <?php
-                      if(common::hasPriv('release', 'unlinkStory') and $canBeChanged)
+                      if(common::hasPriv('projectrelease', 'unlinkStory') and $canBeChanged)
                       {
-                          $unlinkURL = $this->createLink('release', 'unlinkStory', "releaseID=$release->id&story=$story->id");
+                          $unlinkURL = $this->createLink('projectrelease', 'unlinkStory', "releaseID=$release->id&story=$story->id");
                           echo html::a("javascript:ajaxDelete(\"$unlinkURL\", \"storyList\", confirmUnlinkStory)", '<i class="icon-unlink"></i>', '', "class='btn' title='{$lang->release->unlinkStory}'");
                       }
                       ?>
@@ -138,7 +138,7 @@
                 <div class="checkbox-primary check-all"><label><?php echo $lang->selectAll?></label></div>
                 <div class="table-actions btn-toolbar">
                   <?php
-                  if(common::hasPriv('release', 'batchUnlinkStory'))
+                  if(common::hasPriv('projectrelease', 'batchUnlinkStory'))
                   {
                       $unlinkURL = inlink('batchUnlinkStory', "release=$release->id");
                       echo html::a('###', $lang->release->batchUnlink, '', "onclick='setFormAction(\"$unlinkURL\", \"hiddenwin\", this)' class='btn'");
@@ -162,13 +162,13 @@
             </form>
           </div>
           <div class='tab-pane <?php if($type == 'bug') echo 'active'?>' id='bugs'>
-            <?php if(common::hasPriv('release', 'linkBug') and $canBeChanged):?>
+            <?php if(common::hasPriv('projectrelease', 'linkBug') and $canBeChanged):?>
             <div class='actions'><?php echo html::a("javascript:showLink({$release->id}, \"bug\")", '<i class="icon-bug"></i> ' . $lang->release->linkBug, '', "class='btn btn-primary'");?></div>
             <div class='linkBox cell hidden'></div>
             <?php endif;?>
             <form class='main-table table-bug' method='post' target='hiddenwin' action="<?php echo inLink('batchUnlinkBug', "releaseID=$release->id");?>" id='linkedBugsForm' data-ride="table">
               <table class='table has-sort-head' id='bugList'>
-                <?php $canBatchUnlink = common::hasPriv('release', 'batchUnlinkBug');?>
+                <?php $canBatchUnlink = common::hasPriv('projectrelease', 'batchUnlinkBug');?>
                 <?php $vars = "releaseID={$release->id}&type=bug&link=$link&param=$param&orderBy=%s";?>
                 <thead>
                   <tr class='text-center'>
@@ -212,9 +212,9 @@
                     <td><?php echo substr($bug->resolvedDate, 5, 11)?></td>
                     <td class='c-actions'>
                       <?php
-                      if(common::hasPriv('release', 'unlinkBug') and $canBeChanged)
+                      if(common::hasPriv('projectrelease', 'unlinkBug') and $canBeChanged)
                       {
-                          $unlinkURL = $this->createLink('release', 'unlinkBug', "releaseID=$release->id&bug=$bug->id");
+                          $unlinkURL = $this->createLink('projectrelease', 'unlinkBug', "releaseID=$release->id&bug=$bug->id");
                           echo html::a("javascript:ajaxDelete(\"$unlinkURL\", \"bugList\", confirmUnlinkBug)", '<i class="icon-unlink"></i>', '', "class='btn' title='{$lang->release->unlinkBug}'");
                       }
                       ?>
@@ -240,13 +240,13 @@
             </form>
           </div>
           <div class='tab-pane <?php if($type == 'leftBug') echo 'active'?>' id='leftBugs'>
-            <?php if(common::hasPriv('release', 'linkBug') and $canBeChanged):?>
+            <?php if(common::hasPriv('projectrelease', 'linkBug') and $canBeChanged):?>
             <div class='actions'><?php echo html::a("javascript:showLink({$release->id}, \"leftBug\")", '<i class="icon-bug"></i> ' . $lang->release->linkBug, '', "class='btn btn-primary'");?></div>
             <div class='linkBox cell hidden'></div>
             <?php endif;?>
             <form class='main-table table-bug' method='post' target='hiddenwin' action="<?php echo inlink('batchUnlinkBug', "releaseID=$release->id&type=leftBug");?>" id='linkedBugsForm' data-ride="table">
               <table class='table has-sort-head' id='leftBugList'>
-                <?php $canBatchUnlink = common::hasPriv('release', 'batchUnlinkBug');?>
+                <?php $canBatchUnlink = common::hasPriv('projectrelease', 'batchUnlinkBug');?>
                 <?php $vars = "releaseID={$release->id}&type=leftBug&link=$link&param=$param&orderBy=%s";?>
                 <thead>
                   <tr class='text-center'>
@@ -303,9 +303,9 @@
                     <td><?php echo $bug->openedDate?></td>
                     <td class='c-actions'>
                       <?php
-                      if(common::hasPriv('release', 'unlinkBug') and $canBeChanged)
+                      if(common::hasPriv('projectrelease', 'unlinkBug') and $canBeChanged)
                       {
-                          $unlinkURL = $this->createLink('release', 'unlinkBug', "releaseID=$release->id&bug=$bug->id&type=leftBug");
+                          $unlinkURL = $this->createLink('projectrelease', 'unlinkBug', "releaseID=$release->id&bug=$bug->id&type=leftBug");
                           echo html::a("javascript:ajaxDelete(\"$unlinkURL\", \"leftBugList\", confirmUnlinkBug)", '<i class="icon-unlink"></i>', '', "class='btn' title='{$lang->release->unlinkBug}'");
                       }
                       ?>