adjusted.html

<div class="msgHere">
  ... loading today's quote
</div>

<script type='text/javascript'>
  var xmlhttp = null;

  function AjaxRequest(url) {
    if(xmlhttp != null){
      if(xmlhttp.abort)
        xmlhttp.abort();
      xmlhttp = null;
    };
    if(window.XMLHttpRequest) // good browsers
      xmlhttp=new XMLHttpRequest();
    else if(window.ActiveXObject) // IE
      xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");

    if(xmlhttp == null)
      return null;

    xmlhttp.open("GET",url,false);
    xmlhttp.send(null);

    if(xmlhttp.status >= 200 && xmlhttp.status < 300)// 2xx is good enough
      return xmlhttp.responseText;
    else
      return null;
  }

  function clearEle(element){
    while(element.hasChildNodes())
      element.removeChild(element.firstChild);
  }

  window.onload = function(){
    var el, msg, date1, date2, txt = AjaxRequest('/files/quotes.txt');
    date2 = new Date();
    date2.setFullYear(2011);// year to begin
    date2.setMonth(5);// take 1 from the month number
    date2.setDate(6); // date of month

    if(txt == null)
      msg = 'page not found or Ajax not supported by your browser.';
    else{
      msg = txt;
    }
    date1 = new Date();

    txt = msg.split("\n");
    date1 = Math.floor(date1.getTime() / (24*60*60*1000));
    date2 = Math.floor(date2.getTime() / (24*60*60*1000));

    if(date1 > date2){// swap them around? -- replace with another method?
      var tmp = date1;
      date1 = date2;
      date2 = tmp;
    };

    el = document.getElementsByClassName('msgHere');

    for(var i=0; i < el.length; i++) {
      clearEle(el[i]);
      el[i].appendChild( document.createTextNode(txt[(date2-date1)%txt.length]));
    };
  }
</script>