Handling Events - JavaScript by Example - page 502

Table 13.8 Properties of the event Object: Internet Explorer (continued)

Property What It Describes

srcFilter Specifies the filter object that caused an onfilterchange event.

x and y The cursor's horizonal and vertical position in pixels, relative to the

document in which the event occurred.

reason Used to indicate the status of a data transfer for data source objects.

Table 13.9 Properties of the event Object: Mozilla Firefox

Property What It Describes

altKey, ctrlKey, metaKey,
shiftKey

Set to true or false to test if Alt, Shift, Control, or Meta keys were pressed
when the event occurred (Internet Explorer doesn't support metaKey).

pageX and pageY Horizontal and vertical cursor position within a Web page, relative to the

document, not supported by Internet Explorer.

bubbles Set to Boolean value indicating whether or not the event bubbles.

button An integer indicating which mouse button was pressed or released, 0 =

left, 2 = right, 1 = middle. Slightly different in Internet Explorer, as
described earlier.

cancelable A Boolean value indicating whether or not the event can be canceled.

charCode Indicates the Unicode for the key pressed. Use

String.fromCharCode(which) to convert code to string.

clientX, clientY Returns the mouse coordinates at the time of the event relative to upper-

left corner of the window.

currentTarget The node that this event handler is currently being run on.

eventPhase An integer value indicating which phase of the event flow this event is

being processed in. One of CAPTURING_PHASE (1), AT_TARGET (2) or
BUBBLING_PHASE (3).

layerX and layerY Returns the horizontal and vertical cursor position within a layer, not

standard.

relatedTarget On a mouseover event it indicates the node that the mouse has left. On a

mouseout event it indicates the node the mouse has moved onto.

screenX and screenY Returns the coordinates of the mouse relative to the screen when the

event fired.