window,window.screen,window.document.body,window.document.documentElement及它们与尺寸、位置相关的属性

window

innerHeight	Sets or returns the inner height of a window's content area
innerWidth	Sets or returns the inner width of a window's content area
outerHeight	Sets or returns the outer height of a window, including toolbars/scrollbars
outerWidth	Sets or returns the outer width of a window, including toolbars/scrollbars
pageXOffset	Returns the pixels the current document has been scrolled (horizontally) from the upper left corner of the window
pageYOffset	Returns the pixels the current document has been scrolled (vertically) from the upper left corner of the window
screenLeft	Returns the x coordinate of the window relative to the screen,not supported in Firefox
screenTop	Returns the y coordinate of the window relative to the screen,not supported in Firefox
screenX	Returns the x coordinate of the window relative to the screen,not supported in IE
screenY	Returns the y coordinate of the window relative to the screen,not supported in IE

 

window.screen

下面的属性值都和浏览器无关，是电脑本身的设置

window.document.body

Returns the body element of the document

window.document.documentElement

Returns the Document Element of the document (the HTML element)