Send data to the server using a HTTP POST request.
Relinquish jQuery’s control of the $ variable.
The DOM node context originally passed to jQuery(); if none was passed then context will likely be the document.
A collection of properties that represent the presence of different browser features or bugs. Intended for jQuery’s internal use; specific properties may be removed when they are no longer needed internally to improve page startup performance. For your own project’s feature-detection needs, we strongly recommend the use of an external library such as Modernizr instead of dependency on properties in jQuery.support.