Mouseovers are useful in many cases but require the browser to support Javascript for the action to operate. Some interesting and useful examples are included below.
Popup Window
This example of a mouseover will cause a "popup" window to open when the "mouseover" action is performed; try it!
");
write(" Here's a quick way to get another window up here.
");
write("http://www.geocities.com/Heartland/5960
");
write("
Close the window to grab the script.
");
write("