func sendLoginRequest(userName:String,password:String){

        let authenticate:String = String(format: "%@:%@",  userName, password)
        let plainData = (authenticate as NSString).dataUsingEncoding(NSUTF8StringEncoding)
        let base64String = plainData!.base64EncodedStringWithOptions(NSDataBase64EncodingOptions(rawValue: 0))
        print(base64String)
        headers  = ["Authorization" : String(format: "Basic %@",  base64String)]
        self.webInterface = DFWebInterface.shareWebInterface(DFModel.sharedInstance.bMockServer)

        self.webInterface?.sendRequest(nil,request: LOGIN.rawValue, nil,headers: headers as! [NSObject : AnyObject])
    }

-(id)init:(NSString*)strURL :(BOOL)mockServer{
    if(nil!=(sDFWebInterface=[super init])){
        NSURL *baseURL = [NSURL URLWithString:strURL];
        DFAFHTTPClient* client=[[DFAFHTTPClient alloc] initWithBaseURL:baseURL];
        sDFWebInterface->rkobjmanagerDF = [[RKObjectManager alloc] initWithHTTPClient:client];
            [RKMIMETypeSerialization registerClass:[RKNSJSONSerialization class] forMIMEType:@"text/plain"];

        [AFNetworkActivityIndicatorManager sharedManager].enabled = YES;
    }

    return sDFWebInterface;
}