[FormatException: Input string was not in a correct format.]
   System.Number.StringToNumber(String str, NumberStyles options, NumberBuffer& number, NumberFormatInfo info, Boolean parseDecimal) +2752995
   System.Number.ParseDouble(String value, NumberStyles options, NumberFormatInfo numfmt) +113
   System.Double.Parse(String s, NumberStyles style, NumberFormatInfo info) +188
   System.Double.Parse(String s) +20
   Solmetra.Spaw.Spaw.CheckBrowser() +147
   Solmetra.Spaw.Spaw.Page_Load(Object sender, EventArgs e) +57
   System.Web.UI.Control.OnLoad(EventArgs e) +88
   System.Web.UI.Control.LoadRecursive() +74
   System.Web.UI.Control.LoadRecursive() +158
   System.Web.UI.Control.LoadRecursive() +158
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +3040