googleMAp - Re-drawing polylines problem

[connect_fc]

Hi,
I am tring to draw a fence on google map on "click" event
Once this fence is drawn using polylines, I ask the user to click the
button "DONE" after which the page gets refreshed.

Here(after refresh) on this page I am again re-drawing the original fence(polylines)
which the user had drawn...but am unable to do it..

Have a look at the link :-
http://58.68.117.41:81/googlemapdemo/geofencing.aspx (view source)


My code behind is

   protected void Page_Load(object sender, EventArgs e)
   {
       Literal1.Text = "<script>initialize();</script>";
   }

   protected void btnDone_Click(object sender, EventArgs e)
   {

           Literal1.Text = "<script>redrawFence();</script>";

   }

Pls help..
I want to re-draw the fence (polylines) the user had drawn before clicking DONE button