LoutOut_Time field not updating - webpage and database

'   The table in whih is displayed the login/logout history for this use
Response.Write "<table cellspacing=2 cellpadding=2 width=50% >"
Response.Write "<tr bgcolor=#333366>"
Response.Write "<td><font class=colltitle>SessionID:</a></td>"
Response.Write "<td><font class=colltitle>Login Time:</a></td>"
Response.Write "<td><font class=colltitle>Logout Time:</a></td>"
Response.Write "</tr>" & vbcrlf

i = 1
while not rs_Log.EOF
    if i mod 2 then
        Response.Write "<tr class=defaultsmall>"
    else
        Response.Write "<tr class=defaultsmall bgcolor=#dedede>"
    end if
    Response.Write "<td>" & rs_Log("SID") & "</td>"
    Response.Write "<td>" & rs_Log("Login_Time") & "</td>"
    if rs_Log("Logout_Time") <> "" then
        Response.Write "<td>" & rs_Log("Logout_Time") & "</td>"
    else
        Response.Write "<td>N/A</td>"
    end if
    Response.Write "</tr>" & vbcrlf
    i = i + 1
    rs_Log.MoveNext
wend
Response.Write "</table>"