Get the Employer Type List. 

This is a listing of all of the Employer Type items. 

Each Employer Type item is represented by a TEmty. The collection of Employer Type items is represented by a List of TEmty. 

A token is passed for authentication. If the authentication fails, or other errors occur, no employer types are returned. The result of the authentication is represented by a TAuthenticate object. 

This function has security level "Unrestricted", and can be accessed by any authenticated user.

[WebMethod(Description = "Gets a list of all employer types")]
public TAuthEmtyList GetEmployerTypeList(string sToken);