You have to find correct hierarchy of the objects. The Firebug fore Firefox could help you with that.

>
>I want to save few mails automatically. When I am trying to run below command, it says invalid object.
>
>oIE.Document.compose.draft.submit
>
>Could you tell me the command to execute ? following is page source.
>
>***********
> input type="submit" name ="draft" value="Save Draft"
>***********
>Thanks.