Comment redimensionner une banniere flash

Bonjour,

j'ai ajouté une banniere flash sur mon site , normalement faite pour du 1440*900 , mais cette derniere ne se redimonsionne pas automatiquement pour chaque resolution . Voici le code d'intergation

<div id="flashContent"> 
   <object classid="clsid:d27b6e-ae6d-11f-968-445354000" width="1440" height="900" id="bannernow" align="middle"> 
    <param name="movie" value="images/bannernow.swf" /> 
    <param name="quality" value="high" /> 
    <param name="bgcolor" value="#ffffff" /> 
    <param name="play" value="true" /> 
    <param name="loop" value="true" /> 
    <param name="wmode" value="window" /> 
    <param name="scale" value="default" /> 
    <param name="menu" value="true" /> 
    <param name="devicefont" value="false" /> 
    <param name="salign" value="" /> 
    <param name="allowScriptAccess" value="sameDomain" /> 
    <!--[if !IE]>--> 
    <object type="application/x-shockwave-flash" data="images/bannernow.swf" width="1440" height="900"> 
     <param name="movie" value="images/bannernow.swf" /> 
     <param name="quality" value="high" /> 
     <param name="bgcolor" value="#ffffff" /> 
     <param name="play" value="true" /> 
     <param name="loop" value="true" /> 
     <param name="wmode" value="window" /> 
     <param name="scale" value="default" /> 
     <param name="menu" value="true" /> 
     <param name="devicefont" value="false" /> 
     <param name="salign" value="" /> 
     <param name="allowScriptAccess" value="sameDomain" /> 
    <!--<![endif]--> 
     <a href="https://get.adobe.com/flashplayer/"> 
      <img src="https://www.adobe.com/images/shared/download_buttons/get_flash_player.gif" alt="Get Adobe Flash player" /> 
     </a> 
    <!--[if !IE]>--> 
    </object> 
    <!--<![endif]--> 
   </object> 
  </div>