var cur_track_id=0;
var strInner='';

function preview(track_id,t_url,song_title) 
{

	var new_data='player/musicplayer.swf?autoplay=true&autoload=true&song_title='+escape(song_title)+'&song_url='+escape(t_url);

	if (cur_track_id>0) 
	{
		document.getElementById('track_'+cur_track_id).innerHTML=strInner;
		cur_track_id=0;
	}

	if (cur_track_id==track_id) 
	{
		document.getElementById('track_'+cur_track_id).innerHTML=strInner;
		cur_track_id=0;
	} else {

		cur_track_id=track_id;
		Obj=document.getElementById('track_'+cur_track_id);
		strInner=Obj.innerHTML;
		Obj.innerHTML='<object type="application/x-shockwave-flash" data="'+new_data+'" height="17" width="17"><param name="movie" value="'+new_data+'"></object>';

	}
}