大家看看这个，MSDN上的原文地址如下： http://msdn.microsoft.com/library/default.asp?url=/workshop/author/dhtml/reference/objects/obj_window.asponresize Event Internet Development Index --------------------------------------------------------------------------------Fires when the size of the object is about to change. SyntaxInline HTML <ELEMENT onresize = "handler" ... > All platforms Event property object.onresize = handler JScript only object.onresize = GetRef("handler") Visual Basic Scripting Edition (VBScript) 5.0 or later only Named script <SCRIPT FOR = object EVENT = onresize> Internet Explorer only Event InformationBubbles No Cancels No To invoke Change the height or width of the object. Default action No default action. Event Object PropertiesAlthough event handlers in the DHTML Object Model do not receive parameters directly, a handler can query an event object for data.Show Available PropertiesaltKey Sets or retrieves a value that indicates the state of the ALT key. altLeft Sets or retrieves a value that indicates the state of the left ALT key. clientX Sets or retrieves the x-coordinate of the mouse pointer's position relative to the client area of the window, excluding window decorations and scroll bars. clientY Sets or retrieves the y-coordinate of the mouse pointer's position relative to the client area of the window, excluding window decorations and scroll bars. ctrlKey Sets or retrieves the state of the CTRL key. ctrlLeft Sets or retrieves the state of the left CTRL key. offsetX Sets or retrieves the x-coordinate of the mouse pointer's position relative to the object firing the event. offsetY Sets or retrieves the y-coordinate of the mouse pointer's position relative to the object firing the event. returnValue Sets or retrieves the return value from the event. screenX Retrieves the x-coordinate of the mouse pointer's position relative to the user's screen. screenY Sets or retrieves the y-coordinate of the mouse pointer's position relative to the user's screen. shiftKey Sets or retrieves the state of the SHIFT key. shiftLeft Retrieves the state of the left SHIFT key. srcElement Sets or retrieves the object that fired the event. type Sets or retrieves the event name from the event object. x Sets or retrieves the x-coordinate, in pixels, of the mouse pointer's position relative to a relatively positioned parent element. y Sets or retrieves the y-coordinate, in pixels, of the mouse pointer's position relative to a relatively positioned parent element. ResThe onresize event fires for block and inline objects with layout, even if document or CSS (cascading style sheets) property values are changed. Objects have layout when measurements such as the height and width attributes are set, or when the position of the object is set. Intrinsic objects, such as button, and windowed objects, such as window and iframe, fire as expected. This event does not fire for files with embedded controls.Resizing HTML applications also fires the onresize event.Standards InformationThere is no public standard that applies to this event.
要避免多次onresize触发引起某个代码执行多次的不良后果，可以自己写个函数，在onresize之后间隔一个时间值(setTimeout)再调用你要执行的代码，通过置状态变量判断是否要执行，如果两次onresize的时间间隔小于100ms，就再setTimeout，等等看。
http://msdn.microsoft.com/library/default.asp?url=/workshop/author/dhtml/reference/objects/obj_window.asponresize Event Internet Development Index --------------------------------------------------------------------------------Fires when the size of the object is about to change. SyntaxInline HTML <ELEMENT onresize = "handler" ... > All platforms
Event property object.onresize = handler JScript only
object.onresize = GetRef("handler") Visual Basic Scripting Edition (VBScript) 5.0 or later only
Named script <SCRIPT FOR = object EVENT = onresize> Internet Explorer only Event InformationBubbles No
Cancels No
To invoke Change the height or width of the object.
Default action No default action. Event Object PropertiesAlthough event handlers in the DHTML Object Model do not receive parameters directly, a handler can query an event object for data.Show Available PropertiesaltKey Sets or retrieves a value that indicates the state of the ALT key.
altLeft Sets or retrieves a value that indicates the state of the left ALT key.
clientX Sets or retrieves the x-coordinate of the mouse pointer's position relative to the client area of the window, excluding window decorations and scroll bars.
clientY Sets or retrieves the y-coordinate of the mouse pointer's position relative to the client area of the window, excluding window decorations and scroll bars.
ctrlKey Sets or retrieves the state of the CTRL key.
ctrlLeft Sets or retrieves the state of the left CTRL key.
offsetX Sets or retrieves the x-coordinate of the mouse pointer's position relative to the object firing the event.
offsetY Sets or retrieves the y-coordinate of the mouse pointer's position relative to the object firing the event.
returnValue Sets or retrieves the return value from the event.
screenX Retrieves the x-coordinate of the mouse pointer's position relative to the user's screen.
screenY Sets or retrieves the y-coordinate of the mouse pointer's position relative to the user's screen.
shiftKey Sets or retrieves the state of the SHIFT key.
shiftLeft Retrieves the state of the left SHIFT key.
srcElement Sets or retrieves the object that fired the event.
type Sets or retrieves the event name from the event object.
x Sets or retrieves the x-coordinate, in pixels, of the mouse pointer's position relative to a relatively positioned parent element.
y Sets or retrieves the y-coordinate, in pixels, of the mouse pointer's position relative to a relatively positioned parent element. ResThe onresize event fires for block and inline objects with layout, even if document or CSS (cascading style sheets) property values are changed. Objects have layout when measurements such as the height and width attributes are set, or when the position of the object is set. Intrinsic objects, such as button, and windowed objects, such as window and iframe, fire as expected. This event does not fire for files with embedded controls.Resizing HTML applications also fires the onresize event.Standards InformationThere is no public standard that applies to this event.