Updates the languages in the given list to be enabled on the site. Languages not in the list are disabled. 

This method can be accessed through the Site.asmx file located in:

~/Workarea/webservices/WebServiceAPI/Site.asmx

[SoapHeader("AuthHeader")]
[SoapHeader("RequestInfoHeader")]
[WebMethod(MessageName = "UpdateSiteEnabledLanguages", Description = "")]
public void UpdateSiteEnabledLanguages(string LanguageIDs);

<SoapHeader("AuthHeader")>
<SoapHeader("RequestInfoHeader")>
<WebMethod(MessageName = "UpdateSiteEnabledLanguages", Description = "")>
Public Function UpdateSiteEnabledLanguages(LanguageIDs As string) As void