implemented part of the javascript needed to handle upvotes and downv…

…otes

app.rb

@@ -322,7 +322,6 @@ def create_user(username,password)
 # Side effect: the auth token is modified.
 def update_auth_token(user_id)
     user = get_user_by_id(user_id)
-    puts user.inspect
     return nil if !user
     $r.del("auth:#{user['auth']}")
     new_auth_token = get_rand

public/css/style.css

@@ -114,6 +114,7 @@ news h2 a:visited {
 
 news uparrow, news downarrow {
     font-size: 16px;
+    cursor: pointer;
 }
 
 news uparrow {

public/js/app.js

@@ -45,3 +45,18 @@ function submit() {
     });
     return false;
 }
+
+// Install the onclick event in all news arrows the user did not voted already.
+$(document).ready(function() {
+    $('news').each(function(i,news) {
+        var news_id = news.id;
+        var up_class = news.children[0].getAttribute("class");
+        if (!up_class) {
+            news.onclick=function() {alert("x");}
+        }
+        var down_class = news.children[3].getAttribute("class");
+        if (!down_class) {
+            news.onclick=function() {alert("y");}
+        }
+    });
+});