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Manipulating windows

Figure 5-5

As mentioned previously, the

window

object is useful to manipulate browser windows (and frames),

which means as a developer, you are able to move and resize browser windows. Four methods are avail-

able to accomplish this:

moveBy(

) — moves the browser window

pixels horizontally and

pixels verti-

cally relative to its current position. Negative numbers can be used for

to move the window

to the left and for

to move the window up.

moveTo(

) — moves the browser window so that its upper-left corner is located at position

(

) on the user ’s screen. Negative numbers can be used, but these move part of the window

off of the visible screen.

resizeBy(

) — resizes the browser window’s width by

pixels and its height by

pixels relative to the window’s current size. Negative numbers can be used for

to shrink the

window’s width and for

to shrink the window’s height.

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JavaScript in the Browser

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