Application form handler

Oooops there has been an error.....


System.ArgumentNullException: Value cannot be null. Parameter name: input at System.Text.RegularExpressions.Regex.Match(String input) at System.Text.RegularExpressions.Regex.Match(String input, String pattern) at VacancyResponse.EmailAddressCheck(String emailAddress) in d:\Hosting\webvirtuals\shoosmiths\dotnet\VacancyResponse.ascx.cs:line 135 at VacancyResponse.ValidateForm(String email) in d:\Hosting\webvirtuals\shoosmiths\dotnet\VacancyResponse.ascx.cs:line 110 at VacancyResponse.Page_Load(Object sender, EventArgs e) in d:\Hosting\webvirtuals\shoosmiths\dotnet\VacancyResponse.ascx.cs:line 34