Safari, TouchGraph update

The TouchGraph applet used for PubMed Browser (the TG link in search results) has been updated. Multiline node titles are now available, as well as cosmetic changes such as choice of background colours.

Apple's new browser, Safari, is much faster at running Java applets than Chimera or IE, so is recommended for use here. Unfortunately though, at the moment it doesn't seem to be able to handle the cookie manipulations used by the clipboard feature.