Specifies the text or HTML notes for a link.

The notes text appears in a popup box when the user hovers their mouse over the link. If an OVERLIBGRAPH is specified too, then the text appears below the graph.

The map HTMLSTYLE must be set to 'overlib' to enable any of the mouse-hover functionality.

It is also possible to specify the NOTES for the 'in' and 'out' halves of a link individually, using INNOTES and OUTNOTES.