(function($){
var height = $.fn.height,
width  = $.fn.width;
$.fn.extend({
height: function() {
if ( this[0] == window )
return self.innerHeight ||
$.boxModel && document.documentElement.clientHeight ||
document.body.clientHeight;
if ( this[0] == document )
return Math.max( document.body.scrollHeight, document.body.offsetHeight );
return height.apply(this, arguments);
},
width: function() {
if ( this[0] == window )
return self.innerWidth ||
$.boxModel && document.documentElement.clientWidth ||
document.body.clientWidth;
if ( this[0] == document )
return Math.max( document.body.scrollWidth, document.body.offsetWidth );
return width.apply(this, arguments);
},
innerHeight: function() {
return this[0] == window || this[0] == document ?
this.height() :
this.is(':visible') ?
this[0].offsetHeight - num(this, 'borderTopWidth') - num(this, 'borderBottomWidth') :
this.height() + num(this, 'paddingTop') + num(this, 'paddingBottom');
},
innerWidth: function() {
return this[0] == window || this[0] == document ?
this.width() :
this.is(':visible') ?
this[0].offsetWidth - num(this, 'borderLeftWidth') - num(this, 'borderRightWidth') :
this.width() + num(this, 'paddingLeft') + num(this, 'paddingRight');
},
outerHeight: function() {
return this[0] == window || this[0] == document ?
this.height() :
this.is(':visible') ?
this[0].offsetHeight :
this.height() + num(this,'borderTopWidth') + num(this, 'borderBottomWidth') + num(this, 'paddingTop') + num(this, 'paddingBottom');
},
outerWidth: function() {
return this[0] == window || this[0] == document ?
this.width() :
this.is(':visible') ?
this[0].offsetWidth :
this.width() + num(this, 'borderLeftWidth') + num(this, 'borderRightWidth') + num(this, 'paddingLeft') + num(this, 'paddingRight');
},
scrollLeft: function(val) {
if ( val != undefined )
return this.each(function() {
if (this == window || this == document)
window.scrollTo( val, $(window).scrollTop() );
else
this.scrollLeft = val;
});
if ( this[0] == window || this[0] == document )
return self.pageXOffset ||
$.boxModel && document.documentElement.scrollLeft ||
document.body.scrollLeft;
return this[0].scrollLeft;
},
scrollTop: function(val) {
if ( val != undefined )
return this.each(function() {
if (this == window || this == document)
window.scrollTo( $(window).scrollLeft(), val );
else
this.scrollTop = val;
});
if ( this[0] == window || this[0] == document )
return self.pageYOffset ||
$.boxModel && document.documentElement.scrollTop ||
document.body.scrollTop;
return this[0].scrollTop;
},
position: function(options, returnObject) {
var elem = this[0], parent = elem.parentNode, op = elem.offsetParent,
options = $.extend({ margin: false, border: false, padding: false, scroll: false }, options || {}),
x = elem.offsetLeft,
y = elem.offsetTop,
sl = elem.scrollLeft,
st = elem.scrollTop;
if ($.browser.mozilla || $.browser.msie) {
x += num(elem, 'borderLeftWidth');
y += num(elem, 'borderTopWidth');
}
if ($.browser.mozilla) {
do {
if ($.browser.mozilla && parent != elem && $.css(parent, 'overflow') != 'visible') {
x += num(parent, 'borderLeftWidth');
y += num(parent, 'borderTopWidth');
}
if (parent == op) break;
} while ((parent = parent.parentNode) && (parent.tagName.toLowerCase() != 'body' || parent.tagName.toLowerCase() != 'html'));
}
var returnValue = handleOffsetReturn(elem, options, x, y, sl, st);
if (returnObject) { $.extend(returnObject, returnValue); return this; }
else              { return returnValue; }
},
offset: function(options, returnObject) {
var x = 0, y = 0, sl = 0, st = 0,
elem = this[0], parent = this[0], op, parPos, elemPos = $.css(elem, 'position'),
mo = $.browser.mozilla, ie = $.browser.msie, sf = $.browser.safari, oa = $.browser.opera,
absparent = false, relparent = false,
options = $.extend({ margin: true, border: false, padding: false, scroll: true, lite: false }, options || {});
if (options.lite) return this.offsetLite(options, returnObject);
if (elem.tagName.toLowerCase() == 'body') {
x = elem.offsetLeft;
y = elem.offsetTop;
if (mo) {
x += num(elem, 'marginLeft') + (num(elem, 'borderLeftWidth')*2);
y += num(elem, 'marginTop')  + (num(elem, 'borderTopWidth') *2);
} else
if (oa) {
x += num(elem, 'marginLeft');
y += num(elem, 'marginTop');
} else
if (ie && jQuery.boxModel) {
x += num(elem, 'borderLeftWidth');
y += num(elem, 'borderTopWidth');
}
} else {
do {
parPos = $.css(parent, 'position');
x += parent.offsetLeft;
y += parent.offsetTop;
if (mo || ie) {
x += num(parent, 'borderLeftWidth');
y += num(parent, 'borderTopWidth');
if (mo && parPos == 'absolute') absparent = true;
if (ie && parPos == 'relative') relparent = true;
}
op = parent.offsetParent;
if (options.scroll || mo) {
do {
if (options.scroll) {
sl += parent.scrollLeft;
st += parent.scrollTop;
}
if (mo && parent != elem && $.css(parent, 'overflow') != 'visible') {
x += num(parent, 'borderLeftWidth');
y += num(parent, 'borderTopWidth');
}
parent = parent.parentNode;
} while (parent != op);
}
parent = op;
if (parent.tagName.toLowerCase() == 'body' || parent.tagName.toLowerCase() == 'html') {
if ((sf || (ie && $.boxModel)) && elemPos != 'absolute' && elemPos != 'fixed') {
x += num(parent, 'marginLeft');
y += num(parent, 'marginTop');
}
if ( (mo && !absparent && elemPos != 'fixed') ||
(ie && elemPos == 'static' && !relparent) ) {
x += num(parent, 'borderLeftWidth');
y += num(parent, 'borderTopWidth');
}
break;
}
} while (parent);
}
var returnValue = handleOffsetReturn(elem, options, x, y, sl, st);
if (returnObject) { $.extend(returnObject, returnValue); return this; }
else              { return returnValue; }
},
offsetLite: function(options, returnObject) {
var x = 0, y = 0, sl = 0, st = 0, parent = this[0], op,
options = $.extend({ margin: true, border: false, padding: false, scroll: true }, options || {});
do {
x += parent.offsetLeft;
y += parent.offsetTop;
op = parent.offsetParent;
if (options.scroll) {
do {
sl += parent.scrollLeft;
st += parent.scrollTop;
parent = parent.parentNode;
} while(parent != op);
}
parent = op;
} while (parent && parent.tagName.toLowerCase() != 'body' && parent.tagName.toLowerCase() != 'html');
var returnValue = handleOffsetReturn(this[0], options, x, y, sl, st);
if (returnObject) { $.extend(returnObject, returnValue); return this; }
else              { return returnValue; }
}
});
var num = function(el, prop) {
return parseInt($.css(el.jquery?el[0]:el,prop))||0;
};
var handleOffsetReturn = function(elem, options, x, y, sl, st) {
if ( !options.margin ) {
x -= num(elem, 'marginLeft');
y -= num(elem, 'marginTop');
}
if ( options.border && ($.browser.safari || $.browser.opera) ) {
x += num(elem, 'borderLeftWidth');
y += num(elem, 'borderTopWidth');
} else if ( !options.border && !($.browser.safari || $.browser.opera) ) {
x -= num(elem, 'borderLeftWidth');
y -= num(elem, 'borderTopWidth');
}
if ( options.padding ) {
x += num(elem, 'paddingLeft');
y += num(elem, 'paddingTop');
}
if ( options.scroll ) {
sl -= elem.scrollLeft;
st -= elem.scrollTop;
}
return options.scroll ? { top: y - st, left: x - sl, scrollTop:  st, scrollLeft: sl }
: { top: y, left: x };
};
})(jQuery);