Old laptop avle to be turned to a monitor? Answered

Is it possible to turn a laptop into another monitor?
If so please share, and tell if you can use two monitors at the same time, one being a box and another being the laptop?

also is it possible to slide stuff over to it and make more space?(does that make sense?)
example in pic....
http://www.microsoft.com/library/media/1033/windowsxp/images/using/setup/hwandprograms/67360-dual-monitor-setup.jpg

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