(function () {
	var doc = getXMLDocument("http://www.47news.jp/sports/sports_words.xml");
	var obj = (function () {
		var results = [];

		if (doc) {
			var word;
			var items = doc.getElementsByTagName("item");

			var i;
			for (i = 0; i < items.length; i += 1) {
				try {
					word = items[i].getElementsByTagName('word')[0];

					if (word) {
						results.push({
							word: word.childNodes[0].nodeValue
						});	
					}
				} catch (e) {
					continue;
				}
			}
		}

		return results;
	})();

	if (obj.length > 0) {
		var list = map(function (item) {
			var txt = '&nbsp;<a href="http://search.47news.jp/search_rma.php?pageCounter=0&searchBox=' +
					  encodeURI(item.word) +
					  '&Submit=検索">' +
					  item.word +
					  '</a>' +
					  '&nbsp;|';

			return txt;
		}, obj);

		var id = document.getElementById('sports_words');
		var txt = '<font color="red"><b>注目キーワード</b></font>：';
		var i;
		for (i = 0; i < list.length; i += 1) {
			txt += list[i];
		}
		id.innerHTML = txt;
	}
})();