This example builds on the basic drag and drop, keeping the dragged element
on top of the others by changing its
z-index property during the drag.
The YUI Drag and Drop Utility lets you make HTML elements draggable.
For this example, we will enable drag and drop for the three
Next, we define a custom drag and drop implementation that extends
YAHOO.util.DD. Drag and drop exposes many interesting moments that
you can use to implement custom functionality. In this example, we
endDrag moments to adjust the
property so that the dragged element is always on top.
Now we create the instances of
YAHOO.example.DDOnTop, passing the
element ids or references for our demo elements.