+
+ return this.get(0).scrollTop;
+};
+
+/**
+ * This returns an object with top, left, width, height, borderLeft,
+ * borderTop, marginLeft, marginTop, scrollLeft, scrollTop,
+ * pageXOffset, pageYOffset.
+ *
+ * The top and left values include the scroll offsets but the
+ * scrollLeft and scrollTop properties of the returned object
+ * are the combined scroll offets of the parent elements
+ * (not including the window scroll offsets). This is not the
+ * same as the element's scrollTop and scrollLeft.
+ *
+ * For accurate readings make sure to use pixel values.
+ *
+ * @name offset
+ * @type Object
+ * @cat Dimensions
+ * @author Brandon Aaron (brandon.aaron@gmail.com || http://brandonaaron.net)
+ */
+/**
+ * This returns an object with top, left, width, height, borderLeft,
+ * borderTop, marginLeft, marginTop, scrollLeft, scrollTop,
+ * pageXOffset, pageYOffset.
+ *
+ * The top and left values include the scroll offsets but the
+ * scrollLeft and scrollTop properties of the returned object
+ * are the combined scroll offets of the parent elements
+ * (not including the window scroll offsets). This is not the
+ * same as the element's scrollTop and scrollLeft.
+ *
+ * For accurate readings make sure to use pixel values.
+ *
+ * @name offset
+ * @type Object
+ * @param String refElement This is an expression. The offset returned will be relative to the first matched element.
+ * @cat Dimensions
+ * @author Brandon Aaron (brandon.aaron@gmail.com || http://brandonaaron.net)
+ */
+/**
+ * This returns an object with top, left, width, height, borderLeft,
+ * borderTop, marginLeft, marginTop, scrollLeft, scrollTop,
+ * pageXOffset, pageYOffset.
+ *
+ * The top and left values include the scroll offsets but the
+ * scrollLeft and scrollTop properties of the returned object
+ * are the combined scroll offets of the parent elements
+ * (not including the window scroll offsets). This is not the
+ * same as the element's scrollTop and scrollLeft.
+ *
+ * For accurate readings make sure to use pixel values.
+ *
+ * @name offset
+ * @type Object
+ * @param jQuery refElement The offset returned will be relative to the first matched element.
+ * @cat Dimensions
+ * @author Brandon Aaron (brandon.aaron@gmail.com || http://brandonaaron.net)
+ */
+/**
+ * This returns an object with top, left, width, height, borderLeft,
+ * borderTop, marginLeft, marginTop, scrollLeft, scrollTop,
+ * pageXOffset, pageYOffset.
+ *
+ * The top and left values include the scroll offsets but the
+ * scrollLeft and scrollTop properties of the returned object
+ * are the combined scroll offets of the parent elements
+ * (not including the window scroll offsets). This is not the
+ * same as the element's scrollTop and scrollLeft.
+ *
+ * For accurate readings make sure to use pixel values.
+ *
+ * @name offset
+ * @type Object
+ * @param HTMLElement refElement The offset returned will be relative to this element.
+ * @cat Dimensions
+ * @author Brandon Aaron (brandon.aaron@gmail.com || http://brandonaaron.net)
+ */
+jQuery.fn.offset = function(refElem) {
+ if (!this[0]) throw 'jQuery.fn.offset requires an element.';
+
+ refElem = (refElem) ? jQuery(refElem)[0] : null;
+ var x = 0, y = 0, elm = this[0], parent = this[0], pos = null, borders = [0,0], isElm = true, sl = 0, st = 0;
+ do {
+ if (parent.tagName == 'BODY' || parent.tagName == 'HTML') {
+ // Safari and IE don't add margin for static and relative
+ if ((jQuery.browser.safari || jQuery.browser.msie) && pos != 'absolute') {
+ x += parseInt(jQuery.css(parent, 'marginLeft')) || 0;
+ y += parseInt(jQuery.css(parent, 'marginTop')) || 0;
+ }
+ break;
+ }
+
+ pos = jQuery.css(parent, 'position');
+ border = [parseInt(jQuery.css(parent, 'borderLeftWidth')) || 0,
+ parseInt(jQuery.css(parent, 'borderTopWidth')) || 0];
+ sl = parent.scrollLeft;
+ st = parent.scrollTop;
+
+ x += (parent.offsetLeft || 0) + border[0] - sl;
+ y += (parent.offsetTop || 0) + border[1] - st;
+
+ // Safari and Opera include the border already for parents with position = absolute|relative
+ if ((jQuery.browser.safari || jQuery.browser.opera) && !isElm && (pos == 'absolute' || pos == 'relative')) {
+ x -= border[0];
+ y -= border[1];
+ }
+
+ parent = parent.offsetParent;
+ isElm = false;
+ } while(parent);
+
+ if (refElem) {
+ var offset = jQuery(refElem).offset();
+ x = x - offset.left;
+ y = y - offset.top;
+ sl = sl - offset.scrollLeft;
+ st = st - offset.scrollTop;
+ }
+
+ return {
+ top: y,
+ left: x,
+ width: elm.offsetWidth,
+ height: elm.offsetHeight,
+ borderTop: parseInt(jQuery.css(elm, 'borderTopWidth')) || 0,
+ borderLeft: parseInt(jQuery.css(elm, 'borderLeftWidth')) || 0,
+ marginTop: parseInt(jQuery.css(elm, 'marginTopWidth')) || 0,
+ marginLeft: parseInt(jQuery.css(elm, 'marginLeftWidth')) || 0,
+ scrollTop: st,
+ scrollLeft: sl,
+ pageYOffset: window.pageYOffset || document.documentElement.scrollTop || document.body.scrollTop || 0,
+ pageXOffset: window.pageXOffset || document.documentElement.scrollLeft || document.body.scrollLeft || 0
+ };