Querying.js

// Return the current scrollbar offsets as the x and y properties of an object function getScrollOffsets(w) { // Use the specified window or the current window if no argument w = w || window; // This works for all browsers except IE versions 8 and before if (w.pageXOffset != null) return {x: w.pageXOffset, y:w.pageYOffset}; // For IE (or any browser) in Standards mode var d = w.document; if (document.compatMode == "CSS1Compat") return {x:d.documentElement.scrollLeft, y:d.documentElement.scrollTop}; // For browsers in Quirks mode return { x: d.body.scrollLeft, y: d.body.scrollTop }; }