I've been searching for a way to display a new thumbnail each time a user mouseovers a "select option " within a drop down box. By default, all the mouseover will do is highlight the "select option" text. I've not seen this in any javascripts anywhere and it may not be possible. However Coreldraw does this in its "select font" dialog where the mouseover (within the dropbox) not only highlights the text but changes a graphic frame to show a sample of the font all without an "onchange" or "onclick"

Any help is much appreciated