作业动态图标替换

app/views/courses/show.html.erb

@@ -17,9 +17,9 @@
             <li><%= link_to "全部动态", {:controller => "courses", :action => "show", :type => nil}, :class =>"homepagePostTypeAll postTypeGrey"%></li>
             <li><%= link_to "作业动态", {:controller => "courses", :action => "show", :type => "homework"}, :class => "homepagePostTypeAssignment postTypeGrey"%></li>
             <li><%= link_to "通知动态", {:controller => "courses", :action => "show", :type => "news"}, :class => "homepagePostTypeNotice postTypeGrey"%></li>
-            <li><%= link_to "资源库动态", {:controller => "courses", :action => "show", :type => "attachment"}, :class => "resourcesTypeAtt resourcesGrey"%></li>
+            <li><%= link_to "资源库动态", {:controller => "courses", :action => "show", :type => "attachment"}, :class => "homepagePostTypeResource resourcesGrey"%></li>
             <li><%= link_to "论坛动态", {:controller => "courses", :action => "show", :type => "message"}, :class => "homepagePostTypeForum postTypeGrey"%></li>
-            <li><%= link_to "留言动态", {:controller => "courses", :action => "show", :type => "journalsForMessage"}, :class => "homepagePostTypeQuiz postTypeGrey"%></li>
+            <li><%= link_to "留言动态", {:controller => "courses", :action => "show", :type => "journalsForMessage"}, :class => "homepagePostTypeMessage postTypeGrey"%></li>
             <li><%= link_to "问卷动态", {:controller => "courses", :action => "show", :type => "poll"}, :class => "homepagePostTypeQuiz postTypeGrey"%></li>
           </ul>
         </li>

public/stylesheets/courses.css

@@ -96,6 +96,8 @@ a.homepagePostTypeAssignment {background:url(../images/homepage_icon.png) -93px
 a.homepagePostTypeNotice {background:url(../images/homepage_icon.png) -87px -280px no-repeat; padding-left:23px;}
 a.homepagePostTypeForum {background:url(../images/homepage_icon.png) -10px -310px no-repeat; padding-left:23px;}
 a.homepagePostTypeQuiz {background:url(../images/homepage_icon.png) -90px -124px no-repeat; padding-left:23px;}
+a.homepagePostTypeMessage {background:url(images/homepage_icon.png) -3px -518px no-repeat; padding-left:23px;}
+a.homepagePostTypeResource {background:url(images/homepage_icon.png) -86px -517px no-repeat; padding-left:23px;}
 a.homepagePostTypeQuestion {background:url(../images/homepage_icon.png) -10px -273px no-repeat; padding-left:23px;}
 a.homepagePostTypeMine {background:url(../images/homepage_icon.png) -187px -277px no-repeat; padding-left:23px;}
 a.homepagePostTypeAll {background:url(../images/homepage_icon.png) -189px -308px no-repeat; padding-left:23px;}