getResponseCode
Returns the numeric HTTP status code from the HTTP response.
General format
void getResponseCode( rc )
Syntax rules
1. rc is a numeric data item.
General rules
1. This method should be called after a request performed via one of the following methods: doGet, doPost, doPostEx or doPostMultipart.
2. Call this method to check if the method call was successful. The response code value for success is 200.