* Offset Left. * getBoundingClientRect technique from * John Resig * * @see http://ejohn.org/blog/getboundingclientrect-is-awesome/ * * @param {

* Get the value of an element's attribute * * @param {Element} el * A DOM element * * @param {string} attribute * Attribute to get

* Gets the value of the selected <option> element within a <select> element. * * @param {Element} el * the element to look in * * @param

* Normalizes and inserts content into an element; this is identical to * `appendContent()`, except it empties the element first. * * @param {Elemen

* Determines if the current DOM is embedded in an iframe. * * @return {boolean} *

* Determines, via duck typing, whether or not a value is a text node. * * @param {Mixed} value * Check if this value is a text node. * * @