CRM 2011 JS : Set Option Set Value By Text

 function SetOptionSetValueByText(optionsetAttribute, optionText)  
 {  
  var options = Xrm.Page.getAttribute(optionsetAttribute).getOptions();  
  for(i = 0; i < options.length; i++)  
  {  
  if (options[i].text == optionText)  
   Xrm.Page.getAttribute(optionsetAttribute).setValue(options[i].value);  
  }  
 }  

Function calling

SetOptionSetValueByText("new_country","USA");

Pass end point configuration in plugin

when consuming the wcf service in side the plugin, pass the configuration inside the code when initializing the service

for example:

 samplewcfserviceclinet clinet = new samplewcfserviceclinet (GetBasicHttpBinding(),new endpointaddress("endpoint address"))  
 private static BasicHttpBinding GetBasicHttpBinding()  
     {  
       BasicHttpBinding myBinding = new BasicHttpBinding();  
       myBinding.Name = "Binding configuration Name";  
       myBinding.Security.Mode = BasicHttpSecurityMode.None;  
       myBinding.Security.Transport.ClientCredentialType = HttpClientCredentialType.Windows;  
       myBinding.Security.Transport.ProxyCredentialType = HttpProxyCredentialType.Windows;  
       myBinding.Security.Message.ClientCredentialType = BasicHttpMessageCredentialType.UserName;  
       myBinding.SendTimeout = TimeSpan.FromMinutes(10);  
       myBinding.OpenTimeout = TimeSpan.FromMinutes(10);  
       myBinding.CloseTimeout = TimeSpan.FromMinutes(10);  
       myBinding.ReceiveTimeout = TimeSpan.FromMinutes(10);  
       XmlDictionaryReaderQuotas readerQuotas = new XmlDictionaryReaderQuotas();  
       readerQuotas.MaxArrayLength = int.MaxValue;  
       readerQuotas.MaxDepth = int.MaxValue;  
       readerQuotas.MaxStringContentLength = int.MaxValue;  
       readerQuotas.MaxBytesPerRead = int.MaxValue;  
       readerQuotas.MaxNameTableCharCount = int.MaxValue;  
       myBinding.ReaderQuotas = readerQuotas;  
       myBinding.MaxReceivedMessageSize = 2147483647;  
       myBinding.MaxBufferSize = 2147483647;  
       myBinding.MaxBufferPoolSize = 2147483647;  
       return myBinding;  
     }