ImageJ is a public domain Java image processing program inspired by NIH Image for the Macintosh. It runs, either as an online applet or as a downloadable application, on any computer with a Java 1.1 or later. HOME @ http://rsb.info.nih.gov/ij/
It is a word puzzle game which can be played online. It is a JavaApplet that can show crossword puzzles. The clues of these kind of puzzles are in squares. The applet can be put on a web-page where visitors can solve crossword puzzles interactively.