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function addMediaPlayer( mediaUrl, containerID, replaceContent ) {
  try {
 
    var container = document.getElementById( containerID );
    if (container == null) {
      alert("cannot initialize media player");
      return;
    }
    // n'ajouter l'élément que si il n'est pas déjà présent
    var playerId = containerID+"/mediaPlayer";
    var existingPlayer = document.getElementById( playerId );
    if ( existingPlayer == null) {
      var mplayer = document.createElement( "object" );
      mplayer.setAttribute( 'type', 'audio/x-mp3' );
      mplayer.setAttribute( 'data', mediaUrl );
      mplayer.setAttribute( 'width', '200' );
      mplayer.setAttribute( 'height', '20' );
      mplayer.setAttribute( 'id', containerID+"/mediaPlayer" );
 
      var param = document.createElement("param");
      param.setAttribute( 'name', 'src' );
      param.setAttribute( 'value', mediaUrl );	
      mplayer.appendChildNode ( param );
 
      param = document.createElement("param");
      param.setAttribute( 'name', 'autoplay' );
      param.setAttribute( 'value', 'false' );	
      mplayer.appendChildNode ( param );
 
      param = document.createElement("param");
      param.setAttribute( 'name', 'autoStart' );
      param.setAttribute( 'value', '0' );	
      mplayer.appendChildNode ( param );
 
      container.appendChildNode( mplayer );
    } else {
    	alert( containerID+"/mediaPlayer déja présent !");
    }   
 
  } catch (e) {alert("problème :\n" + e);}
} | 
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