AI 150594: change the homepage markup and styles to allow variable height in
  the carousel bulletin items
  also move the IO announcement into the carousel and add an ADC2 announcement
  ALSO change the carousel script to write all bulletins to the DOM right away and show/hide them, instead of reading from the JSON and writing to the DOM each time on the fly

Automated import of CL 150594
diff --git a/docs/html/index.jd b/docs/html/index.jd
index 5732b49..c39e9a8 100644
--- a/docs/html/index.jd
+++ b/docs/html/index.jd
@@ -11,21 +11,19 @@
                             </div><!-- end homeTitle -->
                             <div id="announcement-block">
                             <!-- total max width is 520px -->
-                                <img src="/assets/images/home/IO-logo.png" alt="Google I/O Developer Conference 2009" width="242px" />
-                                <div id="announcement" style="width:270px">
-                                  <p>The Google I/O developer conference took place May 27-28 in San Francisco. 
-                                    If you missed the conference, you can experience the Android sessions
-                                    by viewing YouTube videos.</p>
-                                  <p><a href="{@docRoot}videos/index.html">See the sessions from Google I/O &raquo;</a></p>
+                                <img src="/assets/images/home/android_adc.png" alt="Android Developer Challenge 2" width="232px" />
+                                <div id="announcement" style="width:275px">
+                                  <p>The second Android Developer Challenge has begun! In this contest,
+                                  real-world users will help review and score applications and the overall winner will 
+                                  take away $250,000. The deadline for submitting an application to the contest is August 31, 2009.</p>
+                                  <p><a href="http://code.google.com/android/adc/">Learn more about ADC 2 &raquo;</a></p>
                                 </div> <!-- end annoucement -->
                             </div> <!-- end annoucement-block -->  
                         </div><!-- end topAnnouncement -->
-                        <div id="carousel">
-                            <div id="carouselMain">
-                                <div id="bulletinImg"></div>
-                                <div id="bulletinDesc"></div>
-                            </div>
+                        <div id="carouselMain" style="height:192px"> <!-- this height can be adjusted based on the content height -->
+                        </div>
                             <div class="clearer"></div>
+                        <div id="carouselWheel">
                             <div class="app-list-container" align="center"> 
                                 <a href="javascript:{}" id="arrow-left" onclick="" class="arrow-left-off"></a>
                                 <div id="list-clip">
@@ -33,10 +31,10 @@
                                       <!-- populated by buildCarousel() -->
                                     </div>
                                 </div><!-- end list-clip -->
-                                <a href="javascript:{}" id="arrow-right" onclick="" class="arrow-right-off"></a>
+                                <a href="javascript:{ page_right(); }" id="arrow-right" onclick="" class="arrow-right-on"></a>
                                 <div class="clearer"></div>
                             </div><!-- end app-list container -->
-                        </div><!-- end carousel -->
+                        </div><!-- end carouselWheel -->
                     </div><!-- end homeMiddle -->
 
                     <div style="clear:both">&nbsp;</div>
@@ -127,6 +125,15 @@
       'title':"Android 1.5 SDK",
       'desc': "<p>Android 1.5 SDK is now available. It includes new APIs for Android 1.5, updated developer tools, multiple platform versions, and a Google APIs add-on.</p><p><a href='{@docRoot}sdk/1.5_r3/index.html'>Download Android 1.5 SDK &raquo;</a></p>"
     },
+    
+    'io': {
+      'layout':"imgLeft",
+      'icon':"io-small.png",
+      'name':"Google I/O",
+      'img':"io-large.png",
+      'title':"Google I/O Developer Conference",
+      'desc': "<p>The Google I/O developer conference took place May 27-28 in San Francisco. If you missed the conference, you can experience the Android sessions by viewing YouTube videos.</p><p><a href='{@docRoot}videos/index.html'>See the sessions from Google I/O &raquo;</a></p>"
+    },
 
     'mapskey': {
       'layout':"imgLeft",