In the fourth example, using the overlib style for comparison, sticky tips are introduced! The term 'sticky' simply means that the tooltip does not go away when the mouse moves away from the link. The opposte of 'sticky' is 'greasy', and has been the default up until now. To close a sticky tooltip, you just click on the 'close' dialog. For the left link, we make a caption/content tip that becomes sticky upon clicking. For the right link, we make a tip which stays around even after we mouseout.
This example also demonstrates two other very important features. First of all, click on the left link. Then, before closing the tooltip tip, fly over the right link. Ah!...two tooltips can co-exist!! Not many libraries have this functionality. Also, notice they are on top of each other. Well...go on, click and drag the caption part of the tip to move them around! You will see that the tip being dragged always goes on top of the stationary tip.