Import bookmarks from client side

[Anon]

I know there is a JavaScript function 'external.ImportExportFavorites' (supported be IE) which can be used to do client side job for importing
the bookmarks from a remote user's computer.Also I know asp or javaservlets can do server side job easily.But it seems very difficult to do this with PHP on the server side.Anybody would like to give me some hints? Thanks for help in advance!