DOM 事件

The event object gives you information about an event that has occurred.
事件对象提供关于事件发生的信息

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Examples举例

Which mouse button was clicked?
哪个按钮被点了？

What are the coordinates of the cursor?
游标的坐标？

What is the unicode of the key pressed?
按键的unicde为？

What are the coordinates of the cursor, relative to the screen?
游标相对于屏幕的坐标？

What are the coordinates of the cursor?
游标的坐标

Was the shift key pressed?
shift按键是否按下

Which element was clicked?
哪个元素被点击了？

Which eventype occured?
发生了哪种类型的事件？

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Event Object
事件对象

The Event object represents the state of an event, such as the element in which the event occurred, the state of the keyboard keys, the location of the mouse, and the state of the mouse buttons.
事件对象代表着一个事件的状态，譬如发生事件的元素，键盘按键的状态，鼠标按钮的状态。

The event object is available only during an event - that is, you can use it in event handlers but not in other code.
事件对象只有在可以使用事件处理而不是其他代码处理时才会有效。

In VBScript, you must access the event object through the window object.
在VBS里，你必须通过window对象来访问事件对象

The Event object's collections, properties and events are described below:
下面是有关事件对象的集合，属性以及事件的描述：

IE: Internet Explorer, F: Firefox, N: Netscape, W3C: World Wide Web Consortium (Internet Standard).

Collections集合

Collection	Description	IE	F	N	W3C
bookmarks[]	Returns a collection of bookmarks connected to the rows affected by the events
boundElements[]	Returns a collection of all elements on a page which are bound to a data test

Properties属性

Property	Description	IE	F	N	W3C
Abstract	Returns the Abstract content in an Advanced Stream Redirector (ASX) file	6
altKey	Sets or returns a Boolean value that indicates the state of the ALT key	4
altLeft	Returns a Boolean value that indicates the state of the left ALT key	5
banner	Returns the Banner content in an ASX file	6
button	Sets or returns the mouse button pressed by the user 0 - Default. No button pressed 1 - Left button pressed 2 - Right button pressed 3 - Left and right buttons pressed 4 - Middle button pressed 5 - Left and middle buttons pressed 6 - Right and middle buttons pressed 7 - All three buttons are pressed	4
cancelBubble	Sets or returns a Boolean value that indicates whether or not the current event should bubble up the hierarchy of event handlers	4
clientX	Sets or returns the x-coordinate of the mouse pointer - relative to the screen, excluding decorations and scroll bars	4
clientY	Sets or returns the y-coordinate of the mouse pointer - relative to the screen, excluding decorations and scroll bars	4
contentOverflow		5
ctrlKey	Sets or returns a Boolean value that indicates the state of the CTRL key	4
ctrlLeft	Sets or returns a Boolean value that indicates the state of the left CTRL key	5
dataFld	Sets or returns the data column affected by the oncellchange event	5
fromElement	Sets or returns the object from which activation or the mouse pointer is exiting during the event	4
keyCode	Sets or returns the UNICODE of the key pressed	4
MoreInfo	Returns the MoreInfo content in an ASX file	6
nextPage	Returns the position of the next page within a print template	5
offsetX	Sets or returns the x-coordinate of the mouse pointer relative to the object firing the event	4
offsetY	Sets or returns the y-coordinate of the mouse pointer relative to the object firing the event	4
propertyName	Sets or returns the name of the property that has changed on the object	5
qualifier		5
reason	Sets or returns the result of a data transfer for a data source 0 - Successfully 1 - Aborted 2 - Error	4
recordset	Sets or returns a reference to the default record set in a data source	4
repeat	Returns a Boolean value that indicates whether the ONKEYDOWN event is being repeated	5
returnValue	Sets or returns the return value from an event	4
saveType	Returns the clipboard type when ONCONTENTSAVE fires	5
screenX	Sets or returns the x-coordinate of the mouse pointer - relative to the screen	4
screenY	Sets or returns the y-coordinate of the mouse pointer - relative to the screen	4
shiftKey	Returns a Boolean value that indicates the state of the SHIFT key	4
shiftLeft	Returns a Boolean value that indicates the state of the left SHIFT key	5
srcElement	Sets or returns the object that fired the event	4
srcFilter	Sets or returns the filter object that fired the ONFILTERCHANGE event	4
srcUrn	Sets or returns the Universal Resource Name (URN) of the behavior that fired the event	5
toElement	Sets or returns a reference to the object toward which the user is moving the mouse pointer	4
type	Sets or returns the event name	4
userName		5
wheelDelta	Returns the distance and the direction the wheel button has rolled	5
x	Sets or returns the x-coordinate (in px) of the mouse pointer - relative to a relatively positioned parent element	4
y	Sets or returns the y-coordinate (in px) of the mouse pointer - relative to a relatively positioned parent element	4