# download picture
def downloadpicture
	require 'net/http'
	require 'uri'
	uri = @a_urlpicturename
	begin
		uri_parse = URI.parse(uri)
		host = uri_parse.host
		path = uri_parse.path
		response = nil

		http = Net::HTTP.start(host) 


		response = http.get(path)

		data = response.body
		File.open("/tmp/test.jpg", "w") { |f| f.write(data) }
		@listpicturesfromtmp = "picture downloaded"

	rescue
		@listpicturesfromtmp = "error retrieving #{uri}:"
	end

end