var cU = {
  init: function() {
    if (!document.getElementById) return;
    if (!Sarissa) return;
    cU.category = document.getElementById('selectnews');
    cU.newscontainer = document.getElementById('newscontainer');
    if (!cU.category) return;
	if (!cU.newscontainer.innerHTML) return;
    cU.addEvent(cU.category, 'change', cU.findNews, false);
  },

  addEvent: function(elm, evType, fn, useCapture) {
    // cross-browser event handling for IE5+, NS6 and Mozilla
    // By Scott Andrew
    if (elm.addEventListener) {
      elm.addEventListener(evType, fn, useCapture);
      return true;
    } else if (elm.attachEvent) {
      var r = elm.attachEvent('on' + evType, fn);
      return r;
    } else {
      elm['on' + evType] = fn;
    }
  },

  findNews: function() {
	var xmlhttp = new XMLHttpRequest();
    var qs = '?newsID=' + cU.category.value;
    xmlhttp.open('GET', 'loadnews.php' + qs, true);
    xmlhttp.onreadystatechange = function() {
      if (xmlhttp.readyState == 4) {
        cU.receiveNews(xmlhttp.responseXML);
      }
    };
    xmlhttp.send(null);
  },

  receiveNews: function(dom) {
    var news = dom.getElementsByTagName('newsitem');
    var newsHTML = 'NEWSLIST';
    var newslist = '';
    for (var i = 0; i < news.length; i++) {
      var thisNEWS = '<p>NEWS</p>';  				 
      thisNEWS = thisNEWS.replace(/NEWS/g, news[i].firstChild.nodeValue);
      newslist += thisNEWS;
    }
    newsHTML = newsHTML.replace('NEWSLIST', newslist);
    cU.newscontainer.innerHTML = newsHTML;

    // reattach the event, giving browsers time to do the innerHTML work
    setTimeout(function() {
      cU.category = document.getElementById('selectnews');
      cU.addEvent(cU.category, 'change', cU.findNews, false);
    }, 200);
  }
}

cU.addEvent(window, 'load', cU.init, false);