* Add or remove a class, depending on if it's "enabled" * * @param jQuery $el Element that has the class added/removed * @param String className

* If not MSIE, return false. * If it is, return the version number. * * @return false|number

* Test if the element is a multiselect * * @param jQuery $el Element * @return boolean true/false

* Updates the filename tag based on the value of the real input * element. * * @param jQuery $el Actual form element * @param jQuery $filename

* The browser doesn't provide sizes of elements that are not visible. * This will clone an element and add it to the DOM for calculations. * * @

* Function from jQuery to swap some CSS values, run a callback, * then restore the CSS. Modified to pass JSLint and handle undefined * values wit

* Standard way to unwrap the div/span combination from an element * * @param jQuery $el Element that we wish to preserve * @param Object options