Site base url in advanced custom formatters

Hi,

I'm trying to use the base url in my custom fromatter (advanced mode) it would be easy in basic with the [site-url] token.

I tried :
global $base_path
$base path
base_path()
''

but non worked, then I ended to use :

$_SERVER['HTTP_HOST']

Is that ok ?

My formatter (to play quicktime video in 480p) :

$output = '';

    if ($element['#item']['filepath'])
    { 
     $output = '
      <div class="field-video-quicktime-480"> 
    
       <object id="IEQT" 
         classid="clsid:02BF25D5-8C17-4B23-BC80-D3488ABDDC6B"
         width="853"
         height="480">
        <param name="src" value="http://'.$_SERVER['HTTP_HOST'].''.$element['#item']['filepath'].'"/>
        <param name="autoplay" value="true"/>
        <param name="controller" value="true"/>
       
         <!--[if !IE]> <-->
       
        <object id="NonIEQT"
          data="http://'.$_SERVER['HTTP_HOST'].''.$element['#item']['filepath'].'"
          type="video/quicktime"
          width="853"
          height="496">
           <param name="autoplay" value="true"/>
           <param name="controller" value="true"/>
        </object>
       
         <!--> <![endif]-->
       </object>
      </div> ';
    }

return $output;

By the way thank you for this excellent module, I was stuck with views and panels formatters for video, as the video module formatter for quicktime has a bug http://drupal.org/node/750596