From 31f224fd82cbba8a3e4bcfb10f2625eb9646f8ce Mon Sep 17 00:00:00 2001
From: sw <939547590@qq.com>
Date: Thu, 7 May 2015 11:43:11 +0800
Subject: [PATCH] =?UTF-8?q?=E8=BF=94=E5=9B=9E=E9=A1=B6=E9=83=A8=E5=8A=A8?=
 =?UTF-8?q?=E6=80=81=E6=98=BE=E7=A4=BA?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 app/views/bids/_homework.html.erb                  | 11 +++++++++++
 app/views/homework_attach/_homeworks_list.html.erb |  2 +-
 2 files changed, 12 insertions(+), 1 deletion(-)

diff --git a/app/views/bids/_homework.html.erb b/app/views/bids/_homework.html.erb
index 0cb1ff7cc..0272f2c63 100644
--- a/app/views/bids/_homework.html.erb
+++ b/app/views/bids/_homework.html.erb
@@ -59,6 +59,17 @@
                 }
             );
         }
+
+        $(window).scroll(function(){
+            //获取窗口的滚动条的垂直位置
+            var s = $(window).scrollTop();
+            //当窗口的滚动条的垂直位置大于页面的最小高度时，让返回顶部元素渐现，否则渐隐
+            if( s > 600){
+                $("#gotoTop").fadeIn(100);
+            }else{
+                $("#gotoTop").fadeOut(200);
+            };
+        });
 	</script>
 </div>
 <div id='bidding_project_list'>
diff --git a/app/views/homework_attach/_homeworks_list.html.erb b/app/views/homework_attach/_homeworks_list.html.erb
index 689eaa08b..08ea9434d 100644
--- a/app/views/homework_attach/_homeworks_list.html.erb
+++ b/app/views/homework_attach/_homeworks_list.html.erb
@@ -36,7 +36,7 @@
 <% end %>
 <div class="cl"></div>
 
-<div class="to_top" onclick="javascript:scroll(0,0);">
+<div class="to_top" onclick="javascript:scroll(0,0);" id="gotoTop">
     返<br/>回<br/>顶<br/>部
 </div>
 <div class="cl"></div>