Plugin for WordPress which allows to present footnotes as popup window.
Create a post by copy-paste text (with footnotes) from MS Word to WordPress and the plugin will present footnotes as tooltips.

• Opens a tooltip window on mouseover on footnote reference
• Adjusts optimal size for tooltip
• A container is marked with shs-footnote-popup class to allow styling
• Tooltip will disappear gradually when the mouse moves away.

Have no dependencies (written in pure JavaScript).

Upload files to wp plugin folder and activate the plugin. That's all.