How can I improve this jQuery statement?

How can I improve this jQuery statement?

References

Reference NO 1

http://stackoverflow.com/questions/8890578/how-to-improve-this-jquery-statement

Reference NO 2

http://stackoverflow.com/questions/14637380/jquery-trying-to-do-a-function-inside-an-if-statement

Reference NO 3

http://www.1stwebdesigner.com/tutorials/jquery-beginner-tutorials/

Reference NO 4

http://codereview.stackexchange.com/questions/11815/chaining-jquery-statements-across-multiple-lines

Reference NO 5

http://drupal.stackexchange.com/questions/64567/jquery-and-an-if-statement

Reference NO 6

http://www.tripwiremagazine.com/2009/11/more-jquery-and-general-javascript-tips-to-improve-your-code.html

Reference NO 7

http://www.artzstudio.com/2009/04/jquery-performance-rules/

Reference NO 8

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