I have a function that is called which is responsible to update various DIVs on a page. The function NewsFeedRefresh() is called on interval and has the responsibility to update the time of various items on the page.

This is the code of that function as well as the SinceWhen() function:

function NewsFeedRefresh()
{
   window.clearTimeout(oTimerNewsFeed)
   var lcID=""
   var ldDate=null
   var lnLength=oNewsFeed.length
   var lnNoLanguage=0
   var loID=null
   loDivNewsFeed=document.getElementById("DivNewsFeed")
   if (loDivNewsFeed)
   {
   }
   else
   {
      return true
   }
   if (lnLength==0)
   {
      oTimerNewsFeed=setTimeout("NewsFeedRefresh()",60000)
      return true
   }
   for (lnCounter=0; lnCounter<lnLength; lnCounter++)
   {
      lcID=oNewsFeed[lnCounter][1]
      ldDate=oNewsFeed[lnCounter][2]
      lnNoLanguage=oNewsFeed[lnCounter][3]
      loID=document.getElementById("LX"+lcID+"Time")
      if (loID)
      {
         loID.innerHTML=SinceWhen(ldDate,lnNoLanguage)
      }
   }
   oTimerNewsFeed=setTimeout("NewsFeedRefresh()",60000)
}

function SinceWhen(tdDate,tnNoLanguage)
{
   var lcTime=""
   var ldDateNow=new Date()
   var lnDay=0
   var lnHour=0
   var lnMillisecond=0
   var lnMillisecond2=0
   var lnMillisecond3=0
   var lnMinute=0
   var lnRemaining=0
   var lnSecond=0
   lnMillisecond2=ldDateNow.getTime()
   lnMillisecond3=tdDate.getTime()
   lnMillisecond=lnMillisecond2-lnMillisecond3
   lnSecond=parseInt(lnMillisecond/1000)
   lnDay=parseInt(lnSecond/86400)
   lnRemaining=lnSecond-(lnDay*86400)
   lnHour=parseInt(lnRemaining/3600)
   lnRemaining=lnRemaining-(lnHour*3600)
   lnMinute=parseInt(lnRemaining/60)
   lnSecond=lnRemaining-(lnMinute*60)
   switch (tnNoLanguage)
   {
      case 1:
         if (lnDay>0)
         {
            if (lnDay==1)
            {
               lcTime="Yesterday"
            }
            else
            {
               lcTime=lnDay+" days ago"
            }
         }
         else
         {
            if (lnHour>0)
            {
               if (lnHour==1)
               {
                  lcTime="One hour ago"
               }
               else
               {
                  lcTime=lnHour+" hours ago"
               }
            }
            else
            {
               if (lnMinute>0)
               {
                  if (lnMinute==1)
                  {
                     lcTime="One minute ago"
                  }
                  else
                  {
                     lcTime=lnMinute+" minutes ago"
                  }
               }
               else
               {
                  if (lnSecond<10)
                  {
                     lcTime="Just now"
                  }
                  else
                  {
                     lcTime=lnSecond+" seconds ago"
                  }
               }
            }
         }
         break
      case 2:
         if (lnDay>0)
         {
            if (lnDay==1)
            {
               lcTime="Hier"
            }
            else
            {
               lcTime="Il y a "+lnDay+" jours"
            }
         }
         else
         {
            if (lnHour>0)
            {
               if (lnHour==1)
               {
                  lcTime="Il y a une heure"
               }
               else
               {
                  lcTime="Il y a "+lnHour+" heures"
               }
            }
            else
            {
               if (lnMinute>0)
               {
                  if (lnMinute==1)
                  {
                     lcTime="Il y a une minute"
                  }
                  else
                  {
                     lcTime="Il y a "+lnMinute+" minutes"
                  }
               }
               else
               {
                  if (lnSecond<10)
                  {
                     lcTime="Maintenant"
                  }
                  else
                  {
                     lcTime="Il y a "+lnSecond+" secondes"
                  }
               }
            }
         }
         break
   }
   return lcTime
}

Something is very slow here if I have about 200 items on the page. I would have expected that to slow around 40,000. Anyone would have an idea on how to optimize this logic to avoid this javascript latency?