July 24, 2000 - Event Bubbling
July 24, 2000|
Tips: July 2000
Yehuda Shiran, Ph.D.
<BODY ondragstart="alert('object dragged')">
Since every object on the page is a descendent of the
BODY object, every
dragstart event bubbles to the
BODY object and is then handled by the
ondragstart event handler. Try dragging either selected text or images. An alert box will pop up with the message "object dragged." The event fires on the
IMG objects, but the handling is done by the
BODY object. Learn more about the event model in Column 10, The Internet Explorer Event Model and Column 11, The Cross-Browser Event Model.