/* 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: 2007-12-20 08:46:55 -0600 (Thu, 20 Dec 2007) $
 * $Rev: 4259 $
 *
 * Version: 1.2
 *
 * Requires: jQuery 1.2+
 */

(function($){
	
$.dimensions = {
	version: '1.2'
};


// Create scrollLeft and scrollTop methods

$.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($.curCSS(el.jquery?el[0]:el,prop,true))||0;
};

})(jQuery);