http://mattmcguire.co.uk/wp-content/plugins/xhanch-my-twitter/js/innerfade.js?ver=3.1

1/* =========================================================
2
3// jquery.innerfade.js
4
5// Datum: 2008-02-14
6// Firma: Medienfreunde Hofmann & Baldes GbR
7// Author: Torsten Baldes
8// Mail: [email protected]
9// Web: http://medienfreunde.com
10
11// based on the work of Matt Oakes http://portfolio.gizone.co.uk/applications/slideshow/
12// and Ralf S. Engelschall http://trainofthoughts.org/
13
14 *
15 *  <ul id="news"> 
16 *      <li>content 1</li>
17 *      <li>content 2</li>
18 *      <li>content 3</li>
19 *  </ul>
20 *  
21 *  jQuery('#news').innerfade({ 
22 *	  animationtype: Type of animation 'fade' or 'slide' (Default: 'fade'), 
23 *	  speed: Fading-/Sliding-Speed in milliseconds or keywords (slow, normal or fast) (Default: 'normal'), 
24 *	  timeout: Time between the fades in milliseconds (Default: '2000'), 
25 *	  type: Type of slideshow: 'sequence', 'random' or 'random_start' (Default: 'sequence'), 
26 * 		containerheight: Height of the containing element in any css-height-value (Default: 'auto'),
27 *	  runningclass: CSS-Class which the container get’s applied (Default: 'innerfade'),
28 *	  children: optional children selector (Default: null)
29 *  }); 
30 *
31
32// ========================================================= */
33
34
35(function(jQuery) {
36
37    jQuery.fn.innerfade = function(options) {
38        return this.each(function() {   
39            jQuery.innerfade(this, options);
40        });
41    };
42
43    jQuery.innerfade = function(container, options) {
44        var settings = {
45        		'animationtype':    'fade',
46            'speed':            'normal',
47            'type':             'sequence',
48            'timeout':          2000,
49            'containerheight':  'auto',
50            'runningclass':     'innerfade',
51            'children':         null
52        };
53        if (options)
54            jQuery.extend(settings, options);
55        if (settings.children === null)
56            var elements = jQuery(container).children();
57        else
58            var elements = jQuery(container).children(settings.children);
59        if (elements.length > 1) {
60            jQuery(container).css('position', 'relative').css('overflow', 'hidden').addClass(settings.runningclass);
61            for (var i = 0; i < elements.length; i++) {
62                jQuery(elements[i]).css('z-index', String(elements.length-i)).css('position', 'absolute').hide();
63            };
64            if (settings.type == "sequence") {
65                setTimeout(function() {
66                    jQuery.innerfade.next(container,elements, settings, 1, 0);
67                }, settings.timeout);
68                jQuery(elements[0]).show();
69				jQuery(container).css('height', jQuery(elements[0]).css('height'));				
70            } else if (settings.type == "random") {
71            		var last = Math.floor ( Math.random () * ( elements.length ) );
72                setTimeout(function() {
73                    do { 
74												current = Math.floor ( Math.random ( ) * ( elements.length ) );
75										} while (last == current );             
76										jQuery.innerfade.next(container,elements, settings, current, last);
77                }, settings.timeout);
78                jQuery(elements[last]).show();
79						} else if ( settings.type == 'random_start' ) {
80								settings.type = 'sequence';
81								var current = Math.floor ( Math.random () * ( elements.length ) );
82								setTimeout(function(){
83									jQuery.innerfade.next(container,elements, settings, (current + 1) %  elements.length, current);
84								}, settings.timeout);
85								jQuery(elements[current]).show();
86						}	else {
87							alert('Innerfade-Type must either be \'sequence\', \'random\' or \'random_start\'');
88						}
89				}
90    };
91
92    jQuery.innerfade.next = function(container,elements, settings, current, last) {
93        if (settings.animationtype == 'slide') {
94			if(jQuery(elements[current]).outerHeight() > jQuery(container).outerHeight())
95				jQuery(container).css('height', jQuery(elements[current]).outerHeight());
96            jQuery(elements[last]).slideUp(settings.speed);
97            jQuery(elements[current]).slideDown(settings.speed);
98        } else if (settings.animationtype == 'fade') {
99            jQuery(elements[last]).fadeOut(settings.speed);
100            jQuery(elements[current]).fadeIn(settings.speed, function() {
101							removeFilter(jQuery(this)[0]);
102						});

103        } else
104            alert('Innerfade-animationtype must either be \'slide\' or \'fade\'');
105        if (settings.type == "sequence") {
106            if ((current + 1) < elements.length) {
107                current = current + 1;
108                last = current - 1;
109            } else {
110                current = 0;
111                last = elements.length - 1;
112            }
113        } else if (settings.type == "random") {
114            last = current;
115            while (current == last)
116                current = Math.floor(Math.random() * elements.length);
117        } else
118            alert('Innerfade-Type must either be \'sequence\', \'random\' or \'random_start\'');
119        setTimeout((function() {
120            jQuery.innerfade.next(container,elements, settings, current, last);
121        }), settings.timeout);
122    };
123
124})(jQuery);
125
126// **** remove Opacity-Filter in ie ****
127function removeFilter(element) {
128	if(element.style.removeAttribute){
129		element.style.removeAttribute('filter');
130	}
131}