/* 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: 2007-10-06 20:11:15 +0200 (Sa, 06 Okt 2007) $

* $Rev: 3581 $

*

* Version: @VERSION

*

* Requires: jQuery 1.2+

*/



(function($) {



    $.dimensions = {

        version: '@VERSION'

    };



    // Create innerHeight, innerWidth, outerHeight and outerWidth methods

    $.each(['Height', 'Width'], function(i, name) {



        // innerHeight and innerWidth

        $.fn['inner' + name] = function() {

            if (!this[0]) return;



            var torl = name == 'Height' ? 'Top' : 'Left',  // top or left

		    borr = name == 'Height' ? 'Bottom' : 'Right'; // bottom or right



            return num(this, name.toLowerCase()) + num(this, 'padding' + torl) + num(this, 'padding' + borr);

        };



        // outerHeight and outerWidth

        $.fn['outer' + name] = function(options) {

            if (!this[0]) return;



            var torl = name == 'Height' ? 'Top' : 'Left',  // top or left

		    borr = name == 'Height' ? 'Bottom' : 'Right'; // bottom or right



            options = $.extend({ margin: false }, options || {});



            return num(this, name.toLowerCase())

				+ num(this, 'border' + torl + 'Width') + num(this, 'border' + borr + 'Width')

				+ num(this, 'padding' + torl) + num(this, 'padding' + borr)

				+ (options.margin ? (num(this, 'margin' + torl) + num(this, 'margin' + borr)) : 0);

        };

    });



    // Create scrollLeft and scrollTop methods

    $.each(['Left', 'Top'], function(i, name) {

        $.fn['scroll' + name] = function(val) {

            if (!this[0]) return;



            return val != undefined ?



            // Set the scroll offset

			this.each(function() {

			    this == window || this == document ?

					window.scrollTo(

						name == 'Left' ? val : $(window)['scrollLeft'](),

						name == 'Top' ? val : $(window)['scrollTop']()

					) :

					this['scroll' + name] = val;

			}) :



            // Return the scroll offset

			this[0] == window || this[0] == document ?

				self[(name == 'Left' ? 'pageXOffset' : 'pageYOffset')] ||

					$.boxModel && document.documentElement['scroll' + name] ||

					document.body['scroll' + name] :

				this[0]['scroll' + name];

        };

    });



    $.fn.extend({

        position: function() {

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



            if (elem) {

                // Get *real* offsetParent

                offsetParent = this.offsetParent();



                // Get correct offsets

                offset = this.offset();

                parentOffset = offsetParent.offset();



                // Subtract element margins

                offset.top -= num(elem, 'marginTop');

                offset.left -= num(elem, 'marginLeft');



                // Add offsetParent borders

                parentOffset.top += num(offsetParent, 'borderTopWidth');

                parentOffset.left += num(offsetParent, 'borderLeftWidth');



                // Subtract the two offsets

                results = {

                    top: offset.top - parentOffset.top,

                    left: offset.left - parentOffset.left

                };

            }



            return results;

        },



        offsetParent: function() {

            var offsetParent = this[0].offsetParent;

            while (offsetParent && (!/^body|html$/i.test(offsetParent.tagName) && $.css(offsetParent, 'position') == 'static'))

                offsetParent = offsetParent.offsetParent;

            return $(offsetParent);

        }

    });



    function num(el, prop) {

        return parseInt($.css(el.jquery ? el[0] : el, prop)) || 0;

    };



})(jQuery);