; 
(function ($){ 
var $scrollTo = $.scrollTo = function (target, duration, settings){ 
$(window).scrollTo(target, duration, settings); 
} 
; 
$scrollTo.defaults = { 
axis: 'xy',
duration: parseFloat($.fn.jquery) >= 1.3? 0: 1,
limit: true }
; 
$scrollTo.window = function (scope){ 
return $(window)._scrollable(); 
} 
; 
$.fn._scrollable = function (){ 
return this.map(function (){ 
var elem = this, isWin = !elem.nodeName || $.inArray(elem.nodeName.toLowerCase(), ['iframe', '#document', 'html', 'body'] ) != -1; 
if (!isWin) return elem; 
var doc = (elem.contentWindow || elem).document || elem.ownerDocument || elem; 
return /webkit/i.test(navigator.userAgent) || doc.compatMode == 'BackCompat'? doc.body: doc.documentElement; 
} 
); 
} 
; 
$.fn.scrollTo = function (target, duration, settings){ 
if (typeof duration == 'object') { 
settings = duration; 
duration = 0; 
} 
if (typeof settings == 'function') settings = { 
onAfter: settings}
; 
if (target == 'max') target = 9000000000; 
settings = $.extend({ 
}
, $scrollTo.defaults, settings); 
duration = duration || settings.duration; 
settings.queue = settings.queue && _AN_Read_length('length', settings.axis) > 1; 
if (settings.queue) duration /= 2; 
settings.offset = both(settings.offset); 
settings.over = both(settings.over); 
return this._scrollable().each(function (){ 
if (target == null ) return ; 
var elem = this, $elem = $(elem), targ = target, toff, attr = { 
}
, win = $elem.is('html,body'); 
switch (typeof targ){ 
case 'number': case 'string': if (/^([+-]=?)?\d+(\.\d+)?(px|%)?$/.test(targ)) { 
targ = both(targ); 
break ; 
} 
targ = $(targ, this); 
if (!_AN_Read_length('length', targ)) return ; 
case 'object': if (targ.is || targ.style) toff = (targ = $(targ)).offset(); 
} 
$.each(settings.axis.split(''), function (i, axis){ 
var Pos = axis == 'x'? 'Left': 'Top', pos = Pos.toLowerCase(), key = 'scroll' + Pos, old = elem[key], max = $scrollTo.max(elem, axis); 
if (toff) { 
attr[key] = toff[pos] + (win? 0: old - $elem.offset()[pos]); 
if (settings.margin) { 
attr[key] -= parseInt(targ.css('margin' + Pos)) || 0; 
attr[key] -= parseInt(targ.css('border' + Pos + 'Width')) || 0; 
} 
attr[key] += settings.offset[pos] || 0; 
if (settings.over[pos]) attr[key] += targ[axis == 'x'? 'width': 'height']() * settings.over[pos]; 
} 
 else { 
var val = targ[pos]; 
attr[key] = val.slice && val.slice(-1) == '%'? parseFloat(val) / 100 * max: val; 
} 
if (settings.limit && /^\d+$/.test(attr[key])) attr[key] = attr[key] <= 0? 0: Math.min(attr[key], max); 
if (!i && settings.queue) { 
if (old != attr[key]) animate(settings.onAfterFirst); 
delete attr[key]; 
} 
} 
); 
animate(settings.onAfter); 
function animate(callback){ 
$elem.animate(attr, duration, settings.easing, callback && function (){ 
callback.call(this, target, settings); 
} 
); 
} 
; 
} 
).end(); 
} 
; 
$scrollTo.max = function (elem, axis){ 
var Dim = axis == 'x'? 'Width': 'Height', scroll = 'scroll' + Dim; 
if (!$(elem).is('html,body')) return elem[scroll] - $(elem)[Dim.toLowerCase()](); 
var size = 'client' + Dim, html = elem.ownerDocument.documentElement, body = elem.ownerDocument.body; 
return Math.max(html[scroll], body[scroll]) - Math.min(html[size], body[size]); 
} 
; 
function both(val){ 
return typeof val == 'object'? val: { 
top: val,
left: val}
; 
} 
; 
} 
)(jQuery);