/* Copyright (c) 2007 Paul Bakaus (paul.bakaus@googlemail.com) and Brandon Aaron (brandon.aaron@gmail.com || http://brandonaaron.net)
 * Dual licensed under the MIT (http://www.opensource.org/licenses/mit-license.php)
 * and GPL (http://www.opensource.org/licenses/gpl-license.php) licenses.
 * $LastChangedDate: 2007-08-17 14:14:11 -0400 (Fri, 17 Aug 2007) $
 * $Rev: 2759 $
 * Version: 1.1.2
 * Requires: jQuery 1.1.3+
 */
(function($){
var height = $.fn.height,
 width = $.fn.width;
$.fn.extend({
 height: function() {
 if ( !this[0] ) error();
 if ( this[0] == window )
 if ( $.browser.opera || ($.browser.safari && parseInt($.browser.version) > 520) )
 return self.innerHeight - (($(document).height() > self.innerHeight) ? getScrollbarWidth() : 0);
 else if ( $.browser.safari )
 return self.innerHeight;
 else
 return $.boxModel && document.documentElement.clientHeight || document.body.clientHeight;
 
 if ( this[0] == document ) 
 return Math.max( ($.boxModel && document.documentElement.scrollHeight || document.body.scrollHeight), document.body.offsetHeight );
 
 return height.apply(this, arguments);
 },
 width: function() {
 if (!this[0]) error();
 if ( this[0] == window )
 if ( $.browser.opera || ($.browser.safari && parseInt($.browser.version) > 520) )
 return self.innerWidth - (($(document).width() > self.innerWidth) ? getScrollbarWidth() : 0);
 else if ( $.browser.safari )
 return self.innerWidth;
 else
 return $.boxModel && document.documentElement.clientWidth || document.body.clientWidth;

 if ( this[0] == document )
 if ($.browser.mozilla) {
 // mozilla reports scrollWidth and offsetWidth as the same
 var scrollLeft = self.pageXOffset;
 self.scrollTo(99999999, self.pageYOffset);
 var scrollWidth = self.pageXOffset;
 self.scrollTo(scrollLeft, self.pageYOffset);
 return document.body.offsetWidth + scrollWidth;
 }
 else 
 return Math.max( (($.boxModel && !$.browser.safari) && document.documentElement.scrollWidth || document.body.scrollWidth), document.body.offsetWidth );

 return width.apply(this, arguments);
 },
 innerHeight: function() {
 if (!this[0]) error();
 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() {
 if (!this[0]) error();
 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(options) {
 if (!this[0]) error();
 options = $.extend({ margin: false }, options || {});
 return this[0] == window || this[0] == document ?
 this.height() :
 this.is(':visible') ?
 this[0].offsetHeight + (options.margin ? (num(this, 'marginTop') + num(this, 'marginBottom')) : 0) :
 this.height() 
 + num(this,'borderTopWidth') + num(this, 'borderBottomWidth') 
 + num(this, 'paddingTop') + num(this, 'paddingBottom')
 + (options.margin ? (num(this, 'marginTop') + num(this, 'marginBottom')) : 0);
 },
 outerWidth: function(options) {
 if (!this[0]) error();
 options = $.extend({ margin: false }, options || {});
 return this[0] == window || this[0] == document ?
 this.width() :
 this.is(':visible') ?
 this[0].offsetWidth + (options.margin ? (num(this, 'marginLeft') + num(this, 'marginRight')) : 0) :
 this.width() 
 + num(this, 'borderLeftWidth') + num(this, 'borderRightWidth') 
 + num(this, 'paddingLeft') + num(this, 'paddingRight')
 + (options.margin ? (num(this, 'marginLeft') + num(this, 'marginRight')) : 0);
 },
 scrollLeft: function(val) {
 if (!this[0]) error();
 if ( val != undefined )
 // set the scroll left
 return this.each(function() {
 if (this == window || this == document)
 window.scrollTo( val, $(window).scrollTop() );
 else
 this.scrollLeft = val;
 });
 
 // return the scroll left offest in pixels
 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 (!this[0]) error();
 if ( val != undefined )
 // set the scroll top
 return this.each(function() {
 if (this == window || this == document)
 window.scrollTo( $(window).scrollLeft(), val );
 else
 this.scrollTop = val;
 });
 
 // return the scroll top offset in pixels
 if ( this[0] == window || this[0] == document )
 return self.pageYOffset ||
 $.boxModel && document.documentElement.scrollTop ||
 document.body.scrollTop;

 return this[0].scrollTop;
 },
 position: function(returnObject) {
 return this.offset({ margin: false, scroll: false, relativeTo: this.offsetParent() }, returnObject);
 },
 offset: function(options, returnObject) {
 if (!this[0]) error();
 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, oa = $.browser.opera,
 sf = $.browser.safari, sf3 = $.browser.safari && parseInt($.browser.version) > 520,
 absparent = false, relparent = false, 
 options = $.extend({ margin: true, border: false, padding: false, scroll: true, lite: false, relativeTo: document.body }, options || {});
 if (options.lite) return this.offsetLite(options, returnObject);
 if (options.relativeTo.jquery) options.relativeTo = options.relativeTo[0];
 if (elem.tagName == '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
 if (sf3) {
 x += num(elem, 'marginLeft') + num(elem, 'borderLeftWidth');
 y += num(elem, 'marginTop') + num(elem, 'borderTopWidth');
 }
 } else {
 do {
 parPos = $.css(parent, 'position');
 
 x += parent.offsetLeft;
 y += parent.offsetTop;
 if ((mo && !parent.tagName.match(/^t[d|h]$/i)) || ie || sf3) {
 x += num(parent, 'borderLeftWidth');
 y += num(parent, 'borderTopWidth');
 if (mo && parPos == 'absolute') absparent = true;
 if (ie && parPos == 'relative') relparent = true;
 }

 op = parent.offsetParent || document.body;
 if (options.scroll || mo) {
 do {
 if (options.scroll) {
 sl += parent.scrollLeft;
 st += parent.scrollTop;
 }
 if (oa && ($.css(parent, 'display') || '').match(/table-row|inline/)) {
 sl = sl - ((parent.scrollLeft == parent.offsetLeft) ? parent.scrollLeft : 0);
 st = st - ((parent.scrollTop == parent.offsetTop) ? parent.scrollTop : 0);
 }
 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 == options.relativeTo && !(parent.tagName == 'BODY' || parent.tagName == 'HTML')) {
 if (mo && parent != elem && $.css(parent, 'overflow') != 'visible') {
 x += num(parent, 'borderLeftWidth');
 y += num(parent, 'borderTopWidth');
 }
 if ( ((sf && !sf3) || oa) && parPos != 'static' ) {
 x -= num(op, 'borderLeftWidth');
 y -= num(op, 'borderTopWidth');
 }
 break;
 }
 if (parent.tagName == 'BODY' || parent.tagName == 'HTML') {
 if (((sf && !sf3) || (ie && $.boxModel)) && elemPos != 'absolute' && elemPos != 'fixed') {
 x += num(parent, 'marginLeft');
 y += num(parent, 'marginTop');
 }
 if ( sf3 || (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) {
 if (!this[0]) error();
 var x = 0, y = 0, sl = 0, st = 0, parent = this[0], offsetParent, 
 options = $.extend({ margin: true, border: false, padding: false, scroll: true, relativeTo: document.body }, options || {});
 if (options.relativeTo.jquery) options.relativeTo = options.relativeTo[0];
 
 do {
 x += parent.offsetLeft;
 y += parent.offsetTop;

 offsetParent = parent.offsetParent || document.body;
 if (options.scroll) {
 do {
 sl += parent.scrollLeft;
 st += parent.scrollTop;
 parent = parent.parentNode;
 } while(parent != offsetParent);
 }
 parent = offsetParent;
 } while (parent && parent.tagName != 'BODY' && parent.tagName != 'HTML' && parent != options.relativeTo);

 var returnValue = handleOffsetReturn(this[0], options, x, y, sl, st);

 if (returnObject) { $.extend(returnObject, returnValue); return this; }
 else { return returnValue; }
 },
 offsetParent: function() {
 if (!this[0]) error();
 var offsetParent = this[0].offsetParent;
 while ( offsetParent && (offsetParent.tagName != 'BODY' && $.css(offsetParent, 'position') == 'static') )
 offsetParent = offsetParent.offsetParent;
 return $(offsetParent);
 }
});
var error = function() {
 throw "Dimensions: jQuery collection is empty";
};
var num = function(el, prop) {
 return parseInt($.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 && (($.browser.safari && parseInt($.browser.version) < 520) || $.browser.opera) ) {
 x += num(elem, 'borderLeftWidth');
 y += num(elem, 'borderTopWidth');
 } else if ( !options.border && !(($.browser.safari && parseInt($.browser.version) < 520) || $.browser.opera) ) {
 x -= num(elem, 'borderLeftWidth');
 y -= num(elem, 'borderTopWidth');
 }

 if ( options.padding ) {
 x += num(elem, 'paddingLeft');
 y += num(elem, 'paddingTop');
 }
 if ( options.scroll && (!$.browser.opera || elem.offsetLeft != elem.scrollLeft && elem.offsetTop != elem.scrollLeft) ) {
 sl -= elem.scrollLeft;
 st -= elem.scrollTop;
 }

 return options.scroll ? { top: y - st, left: x - sl, scrollTop: st, scrollLeft: sl }
 : { top: y, left: x };
};
var scrollbarWidth = 0;
var getScrollbarWidth = function() {
 if (!scrollbarWidth) {
 var testEl = $('<div>')
 .css({
 width: 100,
 height: 100,
 overflow: 'auto',
 position: 'absolute',
 top: -1000,
 left: -1000
 })
 .appendTo('body');
 scrollbarWidth = 100 - testEl
 .append('<div>')
 .find('div')
 .css({
 width: '100%',
 height: 200
 })
 .width();
 testEl.remove();
 }
 return scrollbarWidth;
};
})(jQuery);