How to encode image to binary by javascript and embed it into header??

[johnjone]

I have a snippet header here:

Content-type: multipart/form-data, boundary=AaB03x

--AaB03x
content-disposition: form-data; name="field1"

Joe Blow
--AaB03x
content-disposition: form-data; name="pics"
Content-type: multipart/mixed, boundary=BbC04y

--BbC04y
Content-disposition: attachment; filename="file1.txt"

Content-Type: text/plain

//contents of file1.txt ...
--BbC04y
Content-disposition: attachment; filename="file2.gif"
Content-type: image/gif
Content-Transfer-Encoding: binary

//contents of file2.gif...
--BbC04y--
--AaB03x--

I want to ask 2 questions
First: Do i need to encode my image that i choose from the file input html control to binary and embed it in the header programmatically? Because i want to use HttpRequest Object to send the content of the form to the server.
Second: If i have to do, how can i do that by javascript or any other tool and embed it in to the header?
Thanks

[acoder]

You can't use the HttpRequest object to send an image to the server. Use an iframe to upload files instead - see example.