// created by robert harris 28 august 2004

  // compute the last modified date for each display in each html file

function getModDate()
{
   var date = new Date(document.lastModified)
   if (Date.parse(dateStr) == 0)
      return "" 
   return "" + date.getDate() + " " + monthName(date.getMonth()) + " " + (1900 + date.getYear())
}

  // convert int to month name

function monthName(month)
{
   months = new Array(
      "jan", "feb", "mar", "apr",
      "may", "jun", "jul", "aug",
      "sep", "oct", "nov", "dec")
   return months[month]
}

   //  get url parameters by name

function getUrlParameter(paramName)
{
   var currentUrl = window.location.search
   var strBegin = currentUrl.indexOf(paramName) + (paramName.length+1)
   var strEnd = currentUrl.indexOf("&",strBegin)
   if (strEnd==-1)
      strEnd = currentUrl.length
   return currentUrl.substring(strBegin,strEnd)
}