function CaricaMedia(urlMedia,pW,pH,vol){
 
  //pW = larghezza player
  //pH = altezza player
  //alert(volu);
  if (-1 != navigator.userAgent.indexOf("MSIE")){
     //alert('Stai utilizzando MSIE');
     var mediaSel = urlMedia;
     Nascondi('wmp_plugin');
	 var playerObjStr='<object classid="clsid:6BF52A52-394A-11D3-B153-00C04F79FAA6" codebase="http://activex.microsoft.com/activex/controls/mplayer/en/nsmp2inf.cab#Version=5,1,52,701" width="'+pW+'" height="'+pH+'">\r\n';
	 playerObjStr+='<param name="src" value="'+mediaSel+'" />\r\n';
	 playerObjStr+='<param name="URL" value="'+mediaSel+'" />\r\n';
	 playerObjStr+='<param name="Autostart" value="-1" />\r\n';
	 playerObjStr+='<param name="Volume" value="'+vol+'" />\r\n';
	 playerObjStr+='<param name="uiMode" value="mini" />\r\n';
	 playerObjStr+='</object>';
     document.getElementById('player').innerHTML = playerObjStr;
  }
  
  else if(-1 != navigator.userAgent.indexOf("Firefox") || -1 != navigator.userAgent.indexOf("Chrome") || -1 != navigator.userAgent.indexOf("Safari")){
	  
     var pattern=new RegExp("Windows Media Player Firefox Plugin");
     var pluginLength = navigator.plugins.length;
     for(count=0;count<pluginLength;count++){
        if(pattern.test(navigator.plugins[count].name) == true) {
          var pluginStatus = true;
          break;
        }
        else {var pluginStatus = false;}
     }
     if (pluginStatus == true){
        //alert('Non stai utilizzando MSIE. (Windows Media Player plug-in for Firefox installato)');
        var mediaSel = urlMedia;
        Nascondi('wmp_plugin');
		Mostra('menuPlayer');
	    var playerObjStr='<object id="WM" type="application/x-ms-wmp" width="'+pW+'" height="'+pH+'">\r\n';
	    playerObjStr+='<param name="URL" value="'+mediaSel+'" />\r\n';
	    playerObjStr+='<param name="Autostart" value="-1" />\r\n';
	    playerObjStr+='<param name="Volume" value="'+vol+'" />\r\n';
	    playerObjStr+='<param name="uiMode" value="mini" />\r\n';
	    playerObjStr+='</object>';
        document.getElementById('player').innerHTML = playerObjStr;
	 }
     else {
		 
	    Mostra('wmp_plugin');
		Nascondi('menuPlayer');
        //alert(document.getElementById('player').innerHTML);
     } 
		 
        /*var pluginMsg = "Per utilizzare i files multimediali, è necessario Windows Media Player plug-in for Firefox. ";
        pluginMsg += "Puoi scaricarlo e installarlo <a href = 'http://port25.technet.com/pages/windows-media-player-firefox-plugin-download.aspx'>qui</a>."
        alert('Non stai utilizzando MSIE. (Windows Media Player plug-in for Firefox non installato)');
        //document.write('<br /><br /><br /><p>' + pluginMsg + '</p>');*/                                  
  }
}