diff --git a/module/project/css/burn.css b/module/project/css/burn.css
index 8c592e0787..9248966d3d 100644
--- a/module/project/css/burn.css
+++ b/module/project/css/burn.css
@@ -1,4 +1,5 @@
 .pr-25px{padding-right:25px;}
 #burn h1{font-size:14px;}
 .icon-question-sign{color:#666}
-#computeBurn{padding:2px 10px;}
+a.btn{padding:1.5px 10px;}
+#interval{margin-right:10px;}
diff --git a/module/project/js/burn.js b/module/project/js/burn.js
index 30d33bbef9..630354c2b4 100644
--- a/module/project/js/burn.js
+++ b/module/project/js/burn.js
@@ -1,13 +1,9 @@
-$('#interval').change(function()
+$(function()
 {
-    location.href = createLink('project', 'burn', 'projectID=' + projectID + '&type=' + type + '&interval=' + $(this).val());
-})
+    $('#burnTab').addClass('active');
 
-var weekendType = $('#weekend').attr('checked');
-$('#weekend').click(function()
-{
-    weekendType = weekendType ? 'noweekend' : 'widthweekend';
-    params      = 'projectID=' + projectID + '&type=' + weekendType;
-    if(interval) params = params + '&interval=' + interval;
-    location.href = createLink('project', 'burn', params);
+    $('#interval').change(function()
+    {
+        location.href = createLink('project', 'burn', 'projectID=' + projectID + '&type=' + type + '&interval=' + $(this).val());
+    })
 })
diff --git a/module/project/lang/en.php b/module/project/lang/en.php
index 385c23887b..eb4134ff28 100644
--- a/module/project/lang/en.php
+++ b/module/project/lang/en.php
@@ -193,7 +193,8 @@ $lang->project->linkStory             = 'Link story';
 $lang->project->createTask            = 'Create task';
 $lang->project->goback                = 'Go back';
 $lang->project->linkProduct           = 'Select product to link...';
-$lang->project->weekend               = 'Weekend';
+$lang->project->noweekend             = 'No weekend';
+$lang->project->widthweekend          = 'Width weekend';
 $lang->project->interval              = 'Interval';
 
 /* Report. */
diff --git a/module/project/lang/zh-cn.php b/module/project/lang/zh-cn.php
index 393f442308..36e7ba0bdb 100644
--- a/module/project/lang/zh-cn.php
+++ b/module/project/lang/zh-cn.php
@@ -193,7 +193,8 @@ $lang->project->linkStory             = '关联需求';
 $lang->project->createTask            = '添加任务';
 $lang->project->goback                = '返回项目首页';
 $lang->project->linkProduct           = '选择产品关联...';
-$lang->project->weekend               = '周末';
+$lang->project->noweekend             = '去除周末';
+$lang->project->withweekend           = '显示周末';
 $lang->project->interval              = '间隔';
 
 /* 统计。*/
diff --git a/module/project/view/burn.html.php b/module/project/view/burn.html.php
index df9ee9e263..9f2fbbae10 100644
--- a/module/project/view/burn.html.php
+++ b/module/project/view/burn.html.php
@@ -12,16 +12,13 @@
 ?>
 <?php include '../../common/view/header.html.php';?>
 <?php include './taskheader.html.php';?>
-<script>$('#burnTab').addClass('active');</script>
 <table width='950' align='center' class='bd-none' id='burn'>
   <tr>
-    <td class='a-right pr-25px v-middle'>
+    <td class='a-right pr-25px'>
       <?php
-      $checked = ($type == 'noweekend') ? '' : "weekend";
-      echo html::checkbox('', array('weekend' => $lang->project->weekend), $checked);
-
       if($interval) echo html::select('interval', $dayList, $interval);
-
+      $weekend = ($type == 'noweekend') ? 'withweekend' : "noweekend";
+      echo html::a($this->createLink('project', 'burn', "projectID=$projectID&type=$weekend&interval=$interval"), $lang->project->$weekend, '', "class='btn'");
       common::printLink('project', 'computeBurn', 'reload=yes', $lang->project->computeBurn, 'hiddenwin', "title='{$lang->project->computeBurn}{$lang->project->burn}' class='btn' id='computeBurn'");
       echo $lang->project->howToUpdateBurn;
       ?>
@@ -30,8 +27,9 @@
   <tr><td class='a-center'><?php echo $charts; ?></td></tr>
 </table>
 <?php
+/* Interval is keyword in javascript so use intervals. */
+js::set('intervals', $interval);
 js::set('projectID', $projectID);
 js::set('type', $type);
-js::set('interval', $interval);
 ?>
 <?php include '../../common/view/footer.html.php';?>