public String[] getUriAndLyricsSnippet(String artistName,String songName){
	
	if (artistName.equals(null) || artistName.equals("") || songName.equals(null) || songName.equals(""))
		return null;
	
	String url = buildUrl(artistName,songName);

	try {
		Document document = reader.read(url);
//		XMLUtil.writeToFile(document, artistName + " - " + songName + ".xml");
	
		Element root = document.getRootElement(); //LyricsResult element
	
		Element pageIdElement = root.element("page_id"); // page_id element
		String pageId = pageIdElement.getText();

		if(pageId.equals("")){ //there is NOT lyrics page (Song or Artist name is wrong)
			System.out.println("No lyrics page.");
			return null;
		}
		else
			return new String[]{root.element("url").getText(),root.element("lyrics").getText()};
		
	} catch (Exception e) {
		return null;
		//e.printStackTrace();
	}
}