function NewsTicker(oAppendTo) {
      var oThis = this;
      this.timer = null;
      this.feeds = [];
      this.tickerContainer = document.createElement("div");
      this.ticker = document.createElement("nobr");
  
      this.tickerContainer.className = "newsTickerContainer";
      this.ticker.className = "newsTicker";
  
      this.tickerContainer.onmouseover = function () {
          clearTimeout(oThis.timer);
      };
  
      this.tickerContainer.onmouseout = function () {
          oThis.tick();
      };
  
      this.tickerContainer.appendChild(this.ticker);
  
      var oToAppend = (oAppendTo)?oAppendTo:document.body;
      oToAppend.appendChild(this.tickerContainer);
  
      this.ticker.style.left = this.tickerContainer.offsetWidth + "px";
      this.tick();
  }
              
              
  NewsTicker.prototype.tick = function () {
      var iTickerLength = this.ticker.offsetWidth;
      var oThis = this;
  
      var doSetTimeout = function() {
          oThis.tick();
      };
  
      if (this.ticker.innerHTML) {
          if (this.ticker.offsetLeft > -iTickerLength) {
              var iNewLeft = this.ticker.offsetLeft - 1;
              this.ticker.style.left = iNewLeft + "px";
          } else {
              this.ticker.style.left = this.tickerContainer.offsetWidth + "px";
          }
      }
      this.timer = setTimeout(doSetTimeout,1);
  };
              
  NewsTicker.prototype.add = function (sUrl) {
      var feedsLength = this.feeds.length;
  
      this.feeds[feedsLength] = new NewsTickerFeed(this,sUrl);
  };
              
  function NewsTickerFeed(oParent,sUrl) {
      this.parent = oParent;
      this.url = sUrl;
      this.container = null;
  
      this.poll();
  }
              
  NewsTickerFeed.prototype.poll = function () {
      var oThis = this;
  
      var oReq = zXmlHttp.createRequest();
              oReq.onreadystatechange = function () {
                  if (oReq.readyState == 4) {
                      if (oReq.status == 200) {
                  oThis.populateTicker(oReq.responseText);
              }
          }
      };
                      
      var sFullUrl = encodeURI("newsticker.php?url=" + this.url);
                      
      oReq.open("GET", sFullUrl, true);
      oReq.send(null);
                      
      var doSetTimeout = function () {
          oThis.poll();
      };
                      
      setTimeout(doSetTimeout, 90000);
  };
              
  NewsTickerFeed.prototype.populateTicker = function (sXml) {
      var oParser = new XParser(sXml, true);
  
      var spanLinkContainer = document.createElement("span");
  
      var aFeedTitle = document.createElement("a");
      aFeedTitle.className = "newsTicker-feedTitle";
      aFeedTitle.href = oParser.link.value;
      aFeedTitle.target = "_new";
      aFeedTitle.innerHTML = oParser.title.value;
  
      spanLinkContainer.appendChild(aFeedTitle);
  
      for (var i = 0; i < oParser.items.length; i++) {
          var item = oParser.items[i];
      
          var aFeedLink = document.createElement("a");
          aFeedLink.href = item.link.value;
          aFeedLink.target = "_new";
          aFeedLink.className = "newsTicker-feedItem";
          aFeedLink.innerHTML = item.title.value;
      
          spanLinkContainer.appendChild(aFeedLink);
      }
                        
      if (!this.container) {
          this.container = document.createElement("span");
          this.container.className = "newsTicker-feedContainer";
          this.parent.ticker.appendChild(this.container);
      } else {
          this.container.removeChild(this.container.firstChild);
      }
  
      this.container.appendChild(spanLinkContainer);
  };