var currentTrack=0;
function playAudio(id,url,trackname,duration){

	var open_new=false;
	var close_old=false;
	if(currentTrack==0){
		open_new=true;
	}else{
		if(document.getElementById('playlist_item_'+id).className=='player_show'){
			close_old=true;
		}else{
			open_new=true;
			close_old=true;
		}
	}
	if(close_old){
		document.getElementById('playlist_item_'+currentTrack).innerHTML='';
		document.getElementById('playlist_item_'+currentTrack).className='player_hide';
	}
	if(open_new){
		var player_url='/engine/player/player.swf';
		var track_url=url;
		document.getElementById('playlist_item_'+id).className='player_show';
		document.getElementById('playlist_item_'+id).innerHTML='<object type="application/x-shockwave-flash" data="'+player_url+'" height="70" width="470"><param name="wmode" VALUE="transparent" /><param name="allowFullScreen" value="true" /><param name="allowScriptAccess" value="always" /><param name="movie" value="'+player_url+'" /><param name="FlashVars" value="way='+track_url+'&amp;swf=player.swf&amp;w=470&amp;h=70&amp;id='+id+'&amp;time_seconds='+duration+'&amp;autoplay=1&amp;q=&amp;skin=white&amp;volume=50&amp;comment='+trackname+'" /></object>';
		currentTrack=id;
	}
}