Function to determine if the given thing is an element.

gistfile1.js

/**
 * Returns true if the given object is an element.
 * @param thing {object/jQuery}
 * @returns {boolean}
 */
function isDomElement(thing)
  // If you would like this function to handle jQuery objects.
  if (thing && thing.jquery) {
    thing = thing.get(0);
  }
  return (typeof thing === "object" && typeof thing.nodeName !== "undefined");
}