title: SwfObject registerObject?
body: <p>I usually used embed for flash files, but I'm interested in using SwfObject.
  The question is, do I have to write this on the head of my web page?</p>
  
  <pre><code>&lt;script type="text/javascript"&gt;
  swfobject.registerObject("myId", "9.0.0", "expressInstall.swf");
  &lt;/script&gt;
  </code></pre>
  
  <p>Or could I simply use this:</p>
  
  <pre><code>        &lt;object id="myId" classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000" width="300" height="120"&gt;
              &lt;param name="movie" value="test.swf" /&gt;
          &lt;!--[if !IE]&gt;--&gt;
              &lt;object type="application/x-shockwave-flash" data="test.swf" width="300" height="120"&gt;
              &lt;!--&lt;![endif]--&gt;
              &lt;div&gt;
                  &lt;h1&gt;Alternative content&lt;/h1&gt;
                  &lt;p&gt;&lt;a href="http://www.adobe.com/go/getflashplayer"&gt;&lt;img src="http://www.adobe.com/images/shared/download_buttons/get_flash_player.gif" alt="Get Adobe Flash player" /&gt;&lt;/a&gt;&lt;/p&gt;
              &lt;/div&gt;
              &lt;!--[if !IE]&gt;--&gt;
              &lt;/object&gt;
              &lt;!--&lt;![endif]--&gt;
          &lt;/object&gt;
  </code></pre>
  
  <p>Another question, what does the classid mean? do I have to provide this value?</p>
  
  <p>Thanks</p>