// Define number of loops > 0.
   var loop = yearend-yearstart
// Counters.
   var subcounter=0
   var counter=1
   for (counter=0;counter<=loop;counter++)
   {
// Code to be executed.
   // Compute the year.
   var sequenceyear = yearstart+counter
   // Update the subcounter to list 5 entries/line.
   var subcounter = subcounter+1
   // Set year5 to 0 (new line) or 1-4 (no new line).
   var year5 = Math.round(5*(((subcounter-1)/5)-Math.round(((subcounter-1)/5)-.5)))
   // Set yearli to <li> (begin line) or [empty] (no begin line).
   if (year5 < 1)
      {
      beginline = "<li>"
      }
   else
      {
      beginline = ""
      }
   // Set yearend to [empty] (end line) or " | " (no end line).
   var year5 = -1*year5
   if (year5 < -3)
      {
      endline = ""
      }
   else
      {
      endline = " | "
      }
   // Write the results.
   document.write(beginline)
   // Find the URL from yearurlstart, yearurlcenter, yearurlend, and sequenceyear.
   if (parturl < 1)
      {
      document.write("<a href="+yearurlstart+sequenceyear+yearurlend+">")
      }
   else
      {
      document.write("<a href="+yearurlstart+sequenceyear+yearurlcenter+sequenceyear+yearurlend+">")
      }
   document.write("<font color=white size=4>"+sequenceyear+"</font></a>"+endline)
// End code to be executed.
   }