How to check if jQuery Validation Engine is loaded?

How to check if jQuery Validation Engine is loaded?

References

Reference NO 1

http://stackoverflow.com/questions/15185634/how-to-check-if-jquery-validation-engine-is-loaded

Reference NO 2

http://stackoverflow.com/questions/11733133/how-to-implement-onsuccess-using-jquery-validation-engine

Reference NO 3

https://github.com/posabsolute/jQuery-Validation-Engine

Reference NO 4

http://www.position-relative.net/creation/formValidator/

Reference NO 5

http://www.position-absolute.com/articles/using-the-jquery-validation-engine-with-modal-plugins/

Reference NO 6

http://posabsolute.github.io/jQuery-Validation-Engine/

Reference NO 7

http://www.jtable.org/demo/usingwithvalidationengine1

Reference NO 8

http://forum.jquery.com/topic/passing-extra-parameters-to-ajax-check-with-jquery-validation-engine