Below is the fix for redefining the "jQuery.fn.offset" function.

Originally By Brandon Aaron, part of the Dimension Plugin

http://jquery.com/plugins/project/dimensions

jQuery.fn.offset = function() {

/ <summary>

/ Gets the current offset of the first matched element relative to the viewport.

/// </summary>

/// <returns type="Object">An object with two Integer properties, 'top' and 'left'.</returns>

var left = 0, top = 0, elem = this[0], results;

if (elem) with (jQuery.browser) {

var parent = elem.parentNode,

offsetChild = elem,

offsetParent = IESafeOffsetParent(elem),

doc = elem.ownerDocument,

safari2 = safari && parseInt(version) < 522 && !/adobeair/i.test(userAgent),

css = jQuery.curCSS,

fixed = css(elem, "position") == "fixed";

Use getBoundingClientRect if available

if (false && elem.getBoundingClientRect) {

var box = elem.getBoundingClientRect();

Add the document scroll offsets

add(box.left + Math.max(doc.documentElement.scrollLeft, doc.body.scrollLeft),

box.top + Math.max(doc.documentElement.scrollTop, doc.body.scrollTop));

IE adds the HTML element's border, by default it is medium which is 2px

IE 6 and 7 quirks mode the border width is overwritable by the following css html { border: 0; }

IE 7 standards mode, the border is always 2px

This border/offset is typically represented by the clientLeft and clientTop properties

However, in IE6 and 7 quirks mode the clientLeft and clientTop properties are not updated when overwriting it via CSS

Therefore this method will be off by 2px in IE while in quirksmode

add(-doc.documentElement.clientLeft, -doc.documentElement.clientTop);

Otherwise loop through the offsetParents and parentNodes

} else {

Initial element offsets

add(elem.offsetLeft, elem.offsetTop);

Get parent offsets

while (offsetParent) {

Add offsetParent offsets

add(offsetParent.offsetLeft, offsetParent.offsetTop);

Mozilla and Safari > 2 does not include the border on offset parents

However Mozilla adds the border for table or table cells

if (mozilla && !/^t(able|d|h)$/i.test(offsetParent.tagName) || safari && !safari2)

border(offsetParent);

Add the document scroll offsets if position is fixed on any offsetParent

if (!fixed && css(offsetParent, "position") == "fixed")

fixed = true;

Set offsetChild to previous offsetParent unless it is the body element

offsetChild = /^body$/i.test(offsetParent.tagName) ? offsetChild : offsetParent;

Get next offsetParent

offsetParent = offsetParent.offsetParent;

}

Get parent scroll offsets

while (parent && parent.tagName && !/^body|html$/i.test(parent.tagName)) {

// Remove parent scroll UNLESS that parent is inline or a table to work around Opera inline/table scrollLeft/Top bug

if (!/^inline|table.*$/i.test(css(parent, "display")))

Subtract parent scroll offsets

add(-parent.scrollLeft, -parent.scrollTop);

Mozilla does not add the border for a parent that has overflow != visible

if (mozilla && css(parent, "overflow") != "visible")

border(parent);

Get next parent

parent = parent.parentNode;

}

Safari <= 2 doubles body offsets with a fixed position element/offsetParent or absolutely positioned offsetChild

Mozilla doubles body offsets with a non-absolutely positioned offsetChild

if ((safari2 && (fixed || css(offsetChild, "position") == "absolute")) ||

(mozilla && css(offsetChild, "position") != "absolute"))

add(-doc.body.offsetLeft, -doc.body.offsetTop);

Add the document scroll offsets if position is fixed

if (fixed)

add(Math.max(doc.documentElement.scrollLeft, doc.body.scrollLeft),

Math.max(doc.documentElement.scrollTop, doc.body.scrollTop));

}

Return an object with top and left properties

results = { top: top, left: left };

}

function border(elem) {

/ <summary>

/ This method is internal.

/ </summary>

/// <private />

add(jQuery.curCSS(elem, "borderLeftWidth", true), jQuery.curCSS(elem, "borderTopWidth", true));

}

function add(l, t) {

/ <summary>

/ This method is internal.

/// </summary>

/// <private />

left += parseInt(l, 10) || 0;

top += parseInt(t, 10) || 0;

}

return results;

};

function IESafeOffsetParent(elem) {

try {

return elem.offsetParent;

}

catch (e) {

return document.body;

}

}

Umm - this is a really old version of the Dimensions plugin? We're definitely going to need a test case to work off of.