Drag and drop objects disappear when placed in correct target

Hello everyone,

In the Adding Hotspots Tutorial there is an example of using hotspots for drag-and-drop targets. In this case it was the recycling bins photo, which allows users to drop recyclable items in the appropriate bin, then the item disappears. This is in contrast to the example used for the weekly webinar, where items are dragged to the wastebasket but remain visible.

How can I make drag and drop items disappear as in the Adding Hotspots Tutorial?

Thank you,

dan