Subversion-Projekte lars-tiefland.zeldi.de

// ####################################################################################

// #######                                                                      #######

// ####### Plugin:      jScroll                                                 #######

// ####### Author:      William Duffy                                           #######

// ####### Website:     http://www.wduffy.co.uk/jScroll                         #######

// ####### Version:     1.1	                                                    #######

// #######                                                                      #######

// ####### Copyright (c) 2011, William Duffy - www.wduffy.co.uk                 #######

// #######                                                                      #######

// ####### Permission is hereby granted, free of charge, to any person          #######

// ####### obtaining a copy of this software and associated documentation       #######

// ####### files (the "Software"), to deal in the Software without              #######

// ####### restriction, including without limitation the rights to use,         #######

// ####### copy, modify, merge, publish, distribute, sublicense, and/or sell    #######

// ####### copies of the Software, and to permit persons to whom the            #######

// ####### Software is furnished to do so, subject to the following             #######

// ####### conditions:                                                          #######

// #######                                                                      #######

// ####### The above copyright notice and this permission notice shall be       #######

// ####### included in all copies or substantial portions of the Software.      #######

// #######                                                                      #######

// ####### THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,      #######

// ####### EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES      #######

// ####### OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND             #######

// ####### NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT          #######

// ####### HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,         #######

// ####### WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING         #######

// ####### FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR        #######

// ####### OTHER DEALINGS IN THE SOFTWARE.                                      #######

// #######                                                                      #######

// ####################################################################################

(function($) {

    // Public: jScroll Plugin

    $.fn.jScroll = function(options) {

        var opts = $.extend({}, $.fn.jScroll.defaults, options);

        return this.each(function() {

			var $element = $(this);

			var $window = $(window);

			var locator = new location($element);

			$window.scroll(function() {

				$element

					.stop()

					.animate(locator.getMargin($window), opts.speed);

			});

        });

		// Private

		function location($element)

		{

			this.min = $element.offset().top;

			this.originalMargin = parseInt($element.css("margin-top"), 10) || 0;

			this.getMargin = function ($window)

			{

				var max = $element.parent().height() - $element.outerHeight();

				var margin = this.originalMargin;

				if ($window.scrollTop() >= this.min)

					margin = margin + opts.top + $window.scrollTop() - this.min;

				if (margin > max)

					margin = max;

				return ({"marginTop" : margin + 'px'});

			}

		}

    };

    // Public: Default values

    $.fn.jScroll.defaults = {

        speed	:	"slow",

		top		:	10

    };

})(jQuery);