diff --git a/public/javascripts/announcement_refresh.js b/public/javascripts/announcement_refresh.js
deleted file mode 100644
--- a/public/javascripts/announcement_refresh.js
+++ /dev/null
@@ -1,41 +0,0 @@
-
-var Announcement = {
-
-    mostRecentId: 0,
-
-    refreshUrl: '/main/announcements',
-
-    setMostRecentId: function(id) {
-	Announcement.mostRecentId = id;
-    },
-
-    updateRecentId: function(id) {
-	if(Announcement.mostRecentId < id)
-	    Announcement.mostRecentId = id;
-    },
-
-    refreshAnnouncement: function() {
-	var url = Announcement.refreshUrl;
-	new Ajax.Request(url, {
-	    method: 'get',
-	    parameters: { recent: Announcement.mostRecentId },
-	    onSuccess: function(transport) {
-		if((transport.status == 200) && 
-		   (transport.responseText.match(/\S/)!=null)) {
- 		    var announcementBody = $("announcementbox-body");
-		    announcementBody.insert({ top: transport.responseText });
-		    var announcementBoxes = $$(".announcementbox");
-		    if(announcementBoxes.length!=0)
-			announcementBoxes[0].show();
-		    Announcement.registerRefreshEventTimer();
-		}
-	    }
-	});
-    },
-
-    registerRefreshEventTimer: function() {
-	setTimeout(function () {
-	    Announcement.refreshAnnouncement();
-	}, 30000);
-    }
-};