/*

Routine to write date document modified

   Parameters:
        time              True if time is to be displayed else False   

   e.g. 
        <script type="text/javascript">writeDateModified (false);</script>
   or   
        <script type="text/javascript">writeDateModified (true);</script>
        
   Note that if the server has failed to load up the HTTP header field with a 
   parsable date, nothing is written.
   
*/

function writeDateModified (time) {

  var days = new Array;                        // Array to hold day names
  var months = new Array;                      // Array to hold up month names

  // Load up day names
  days[0] = "sunday";
  days[1] = "monday";
  days[2] = "tuesday";
  days[3] = "wednesday";
  days[4] = "thursday";
  days[5] = "friday";
  days[6] = "saturday";

  // Load up month names
  months[0] = "january";
  months[1] = "february";
  months[2] = "march";
  months[3] = "april";
  months[4] = "may";
  months[5] = "june";
  months[6] = "july";
  months[7] = "august";
  months[8] = "september";
  months[9] = "october";
  months[10] = "november";
  months[11] = "december";

  // Assign date variables with document.lastModified 
  var modDate = new Date(Date.parse(document.lastModified));
  
  // If we have a valid date reformat it.
  if (modDate != 0) {
  
    // Set up day variable to hold the name of the day
    var day = days[modDate.getDay()];
    
    // ndate variable holds day of month
    var ndate = modDate.getDate();
    
    // Set up month variable to hold the name of the month
    var month = months[modDate.getMonth()];
    
    // Get the year and if it is less than 1000 add 1900 to it.
    var year = modDate.getYear();
    if (year < 1000) year = year + 1900;
    
    // Load up the time variables if required
    if (time) {
      var hour = modDate.getHours().toString();
      if (hour.length == 1) hour = "0" + hour; 
      var minute = modDate.getMinutes().toString();
      if (minute.length == 1) minute = "0" + minute;
      var second = modDate.getSeconds().toString();
      if (second.length == 1) second = "0" + second;
    }
    
    // Display date and time document was last updated.
    document.write(day + " " + ndate + " " + month + " " + year+ "  ");
    if (time) {
      document.write(hour + ":" + minute + ":" + second);
    }
  }
}