function addTrack(p_tracklist_id,p_autor,p_title){
	var creator = p_autor
	var title = p_title
	var creator_text_node = document.createTextNode(creator)
	var title_text_node = document.createTextNode(title)

	var track_creator_element = document.createElement('span')
	var track_title_element = document.createElement('span')
	track_creator_element.appendChild(creator_text_node)
	track_title_element.appendChild(title_text_node)

	var separator_text_node = document.createTextNode(' - ')

	var track_element = document.createElement('li')
	track_element.appendChild(track_creator_element)
	track_element.appendChild(separator_text_node)
	track_element.appendChild(track_title_element)

	var tracklist_element = document.getElementById(p_tracklist_id);
	tracklist_element.appendChild(track_element)
	
	
	track_creator_element.className = "track-creator";
	track_title_element.className = "track-title";
	if(tracklist_element.getElementsByTagName('li').length%2){
		track_element.className = "impar"
	}else{
		track_element.className = "par"
	}
	
	return false;
}