Why isn't the system using Signal R?


>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?