Test if server is on   

I have a small file sharing program on my pc.   I also have a website with 
comcast with a link to MyFileSharing server.

I only share files once or twice a week and it seems I always forget to turn 
it on.  Of course when I don't turn it on they get an error page.

Is there a way to test if MyFileSharing server is on?
   if MyFileSharing server is on then
      go to MyFileSharing server
   else
      go to page2.htm

date: Tue, 6 Jun 2006 10:05:33 -0400   author:   John