gistfile1.js

// Override the default now oplaying to allow an event to buybble up when we chaaange the track
// This way we can listen for it easily without polling to check for Amie Street Links
function displayTrack(track, show) {
  var trackId = track.trackId;
	var title = track.title;
	var artist = track.contributor;

  var activeClass = (track.is_fav) ? "active" : "";
  var show = (show ? '' : 'style="display:none"')
  html = '<li ' + show + ' class="now_playing favable">';
  html += '<form title="Add this track to your favorites" method="post" id="track_' + trackId + 
     '_fav" class="fav ' + activeClass + '" action="/tracks/' + trackId + 
     '/toggle_fav"><input type="image" src="/images/btn/blank.png" /></form>';
       
  html += "<span class='t'>" + title + " </span> ";
  html += "<span class='a'>" + artist + "</span>";
  html += '<div id="track_details_'+trackId+'" class="track_details clear" style="display:none;">' +
      '<div class="amazon"> ' +
        '<img src="/images/icon/icon.amazon.png" class="trans-png" /> ' +
       '<a href="http://www.amazon.com/gp/search?ie=UTF8&amp;keywords='+escape(artist)+'%20+'+escape(title)+ 
       '&amp;tag=8tracks-20&amp;index=digital-music&amp;linkCode=ur2&amp;camp=1789&amp;creative=9325" title="Download from Amazon.com" rel="external"">Download</a>' +
       '<img src="http://www.assoc-amazon.com/e/ir?t=8tracks-20&amp;l=ur2&amp;o=1" width="1" height="1" border="0" alt="" style="border:none !important; margin:0px !important;" />' +
  '</div>';
  
  html += '<div class="album">';
    if(track.album){
     html += 'Album: <span class="detail">' + track.album + '</span>';
    }
  html += '</div>';

  if(track.year){
   html += '<div class="year">Year: <span class="detail">' + track.year + '</span></div>';
  }
      
  html+= '</div></li>';
  
  $j('#tracks_played').prepend(html);	
  $j(document).trigger('8tracks:new-now-playing');
}

// Just a little test to make sure it works
$j(document).bind('8tracks:new-now-playing', function(){
    console.debug('8tracks:now playing has been changed');
});


$j(document).bind('8tracks:new-now-playing', function(){
    var AFFILIATE_CODE = '8tracks';
    var getAlbumBuyLink = function(id){
	return 'http://amiestreet.com/order/prepare?albumIds='+id+'&pytr='+AFFILIATE_CODE;
    }
    var getSongBuyLink = function(id){
	return 'http://amiestreet.com/order/prepare?songIds='+id+'&pytr='+AFFILIATE_CODE;
    }

    var li = $j('li.now_playing');
    var track = li.find('.t').html();
    var artist = li.find('.a').html();
    $j.getJSON('http://amiestreet.com/api/v0.1/SearchApi/find.json?jsoncallback=?&artists='+artist+'&songs='+track, function(data){
	if(data.songs[0].found){
	    var h = '<img src="http://amiestreet.com/favicon.ico" alt="Download from Amie Street" style="margin-left: 10px;" /> <a rel="external" href="'+getSongBuyLink(data.songs[0].id)+'">Download</a>';
 	    li.find('.amazon').append(h);
	}
    });
});