Emailing attachments upload to a form

When I use the script to upload an attachment to my form it does not email the attachment. I am using the mail() function to email the results of the form to me. Is there any other code I need to put in my mail() function to make this work, if so where would I put it? I am currently using the following code: <? mail ("me@mydomain.com", "Form Results", "Name: $name\nMessage: $message\nAttachment: $attachment", "From: $fromemail"); ?> Thanks, Ben