How to store results from a callback function?

How to store results from a callback function?

References

Reference NO 1

http://stackoverflow.com/questions/13644241/how-to-store-results-from-a-callback-function

Reference NO 2

http://stackoverflow.com/questions/6962380/how-to-create-a-call-back-function-and-store-the-value-of-the-variable

Reference NO 3

http://www.sencha.com/forum/showthread.php?124069-Get-Value-From-store-load()-callback-function

Reference NO 4

http://www.mathworks.com/matlabcentral/newsreader/view_thread/283005

Reference NO 5

http://javascriptissexy.com/understand-javascript-callback-functions-and-use-them/

Reference NO 6

http://recurial.com/programming/understanding-callback-functions-in-javascript/

Reference NO 7

http://www.rebol.com/r3/docs/concepts/extensions-callbacks.html

Reference NO 8

http://www.mosync.com/documentation/manualpages/using-javascript-callbacks