diff --git a/module/group/lang/zh-cn.php b/module/group/lang/zh-cn.php
index 0e0f5ce9ec..32a69ede7d 100644
--- a/module/group/lang/zh-cn.php
+++ b/module/group/lang/zh-cn.php
@@ -124,6 +124,7 @@ $lang->resource->project->story          = 'story';
 $lang->resource->project->build          = 'build';
 $lang->resource->project->bug            = 'bug';
 $lang->resource->project->burn           = 'burn';
+$lang->resource->project->computeBurn    = 'computeBurn';
 $lang->resource->project->burnData       = 'burnData';
 $lang->resource->project->team           = 'team';
 $lang->resource->project->manageProducts = 'manageProducts';
diff --git a/module/index/view/index.html.php b/module/index/view/index.html.php
index a63144ccb0..9339fbc6b2 100644
--- a/module/index/view/index.html.php
+++ b/module/index/view/index.html.php
@@ -46,7 +46,8 @@
           <div class='box-content a-center'>
             <?php
             echo $burns[$project->id];
-            echo html::linkButton($lang->project->largeBurnChart, $this->createLink('project', 'burn', "projectID=$project->id"));
+            common::printLink('project', 'burn', "projectID=$project->id", $lang->project->largeBurnChart);
+            common::printLink('project', 'computeBurn', 'reload=yes', $lang->project->computeBurn, 'hiddenwin');
             ?>
           </div>
 
diff --git a/module/project/control.php b/module/project/control.php
index 67956deb33..332ff867a5 100644
--- a/module/project/control.php
+++ b/module/project/control.php
@@ -322,11 +322,11 @@ class project extends control
     }
 
     /* 计算燃烧图数据。*/
-    public function computeBurn()
+    public function computeBurn($reload = 'no')
     {
         $this->view->burns = $this->project->computeBurn();
-        $this->display();
-        exit;
+        if($reload == 'yes') die(js::reload('parent'));
+        die($this->display());
     }
 
     /* 团队成员。*/
diff --git a/module/project/lang/zh-cn.php b/module/project/lang/zh-cn.php
index f9ee5a4701..b6b777e43a 100644
--- a/module/project/lang/zh-cn.php
+++ b/module/project/lang/zh-cn.php
@@ -75,6 +75,7 @@ $lang->project->story          = '需求列表';
 $lang->project->bug            = 'Bug列表';
 $lang->project->build          = 'Build列表';
 $lang->project->burn           = '燃尽图';
+$lang->project->computeBurn    = '更新燃尽图';
 $lang->project->burnData       = '燃尽图数据';
 $lang->project->team           = '团队成员';
 $lang->project->manageProducts = '关联产品';
diff --git a/module/project/model.php b/module/project/model.php
index 00a364253a..ff7d95e64b 100644
--- a/module/project/model.php
+++ b/module/project/model.php
@@ -422,7 +422,7 @@ class projectModel extends model
     }
 
     /* 燃烧图所需要的数据。*/
-    public function getBurnData($projectID = 0, $itemCounts = 21)
+    public function getBurnData($projectID = 0, $itemCounts = 30)
     {
         /* 获得项目的信息，和已经计算过的燃烧图数量。*/
         $project    = $this->getById($projectID);
@@ -442,17 +442,22 @@ class projectModel extends model
             $current = helper::today();
             if($project->end != '0000-00-00')
             {
-                $period = helper::diffDate($project->end, $project->begin);
+                $period = helper::diffDate($project->end, $project->begin) + 1;
                 $counts = $period > $itemCounts ? $itemCounts : $period;
             }
             else
             {
                 $counts = $itemCounts;
             }
-            for($i = 0; $i <= $counts - $burnCounts; $i ++)
+
+            for($i = 0; $i < $counts - $burnCounts; $i ++)
             {
-                $sets[$current]->name = $current;
-                $sets[$current]->value = '';
+                if(helper::diffDate($current, $project->end) > 0) break;
+                if(!isset($sets[$current]))
+                {
+                    $sets[$current]->name = $current;
+                    $sets[$current]->value = '';
+                }
                 $nextDay = date(DT_DATE1, strtotime('next day', strtotime($current)));
                 $current = $nextDay;
             }
diff --git a/module/project/view/burn.html.php b/module/project/view/burn.html.php
index 605ece9fa0..64dd89020e 100644
--- a/module/project/view/burn.html.php
+++ b/module/project/view/burn.html.php
@@ -23,6 +23,11 @@
  */
 ?>
 <?php include '../../common/view/header.html.php';?>
-<div class='yui-d0 a-center'><?php echo $charts; ?></div>
+<div class='yui-d0 a-center'>
+  <?php
+  echo $charts; 
+  common::printLink('project', 'computeBurn', 'reload=yes', $lang->project->computeBurn, 'hiddenwin');
+  ?>
+</div>
 <script language='Javascript'>createChart1();</script>
 <?php include '../../common/view/footer.html.php';?>