diff --git a/server.go b/server.go
index 893e30e..2ce8178 100644
--- a/server.go
+++ b/server.go
@@ -188,6 +188,8 @@ func uploadHandler(w http.ResponseWriter, r *http.Request) {
 	io.Copy(f, file)
 }
 
+//when user requst an attachment from our server, we get the file from CRM server and reply it back
+//in this way, user has no 'direct-access' to the CRM server.
 func crmAttachmentHandler(w http.ResponseWriter, r *http.Request) {
 	fileID := getCrmFileID(r.URL.Path)
 	saveAs := GlobalPath.CRMAttachment + "crm_attach_" + fileID //add prefix for easy deleting