1, Download NVU Browser or mozilla browser which are great for online editing.
Load page where the owner wants to put updates and edit it save it (still it will need ftp login/password once editing is done and save the page on web server.
or
2, Make text file about vacancies (Eg.: vacancy.txt) that would show in the frame put it on the server or any external server, embed the file in the frame box. when owner wants to change this all they do is make another text file with updated info and save with same name (vacancy.txt) and put it on the server.
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