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- /* =========================================================
- // jquery.innerfade.js
- // Datum: 2008-02-14
- // Firma: Medienfreunde Hofmann & Baldes GbR
- // Author: Torsten Baldes
- // Mail: t.baldes@medienfreunde.com
- // Web: http://medienfreunde.com
- // based on the work of Matt Oakes http://portfolio.gizone.co.uk/applications/slideshow/
- // and Ralf S. Engelschall http://trainofthoughts.org/
- *
- * <ul id="news">
- * <li>content 1</li>
- * <li>content 2</li>
- * <li>content 3</li>
- * </ul>
- *
- * jQuery('#news').innerfade({
- * animationtype: Type of animation 'fade' or 'slide' (Default: 'fade'),
- * speed: Fading-/Sliding-Speed in milliseconds or keywords (slow, normal or fast) (Default: 'normal'),
- * timeout: Time between the fades in milliseconds (Default: '2000'),
- * type: Type of slideshow: 'sequence', 'random' or 'random_start' (Default: 'sequence'),
- * containerheight: Height of the containing element in any css-height-value (Default: 'auto'),
- * runningclass: CSS-Class which the container get’s applied (Default: 'innerfade'),
- * children: optional children selector (Default: null)
- * });
- *
- // ========================================================= */
- (function(jQuery) {
- jQuery.fn.innerfade = function(options) {
- return this.each(function() {
- jQuery.innerfade(this, options);
- });
- };
- jQuery.innerfade = function(container, options) {
- var settings = {
- 'animationtype': 'fade',
- 'speed': 'normal',
- 'type': 'sequence',
- 'timeout': 2000,
- 'containerheight': 'auto',
- 'runningclass': 'innerfade',
- 'children': null
- };
- if (options) {
- jQuery.extend(settings, options);
- }
- if (settings.children === null) {
- var elements = jQuery(container).children();
- }
- else {
- var elements = jQuery(container).children(settings.children);
- }
- if (elements.length > 1) {
- jQuery(container).css('position', 'relative').css('overflow', 'hidden').addClass(settings.runningclass);
- for (var i = 0; i < elements.length; i++) {
- jQuery(elements[i]).css('z-index', String(elements.length-i)).css('position', 'absolute').hide();
- }
- if (settings.type == "sequence") {
- setTimeout(function() {
- jQuery.innerfade.next(container,elements, settings, 1, 0);
- }, settings.timeout);
- jQuery(elements[0]).show();
- //Set the container height for the first element
- jQuery(container).css('height', jQuery(elements[0]).height());
- }
- else if (settings.type == "random") {
- var last = Math.floor ( Math.random () * ( elements.length ) );
- setTimeout(function() {
- do {
- current = Math.floor ( Math.random () * ( elements.length ) );
- } while (last == current );
- jQuery.innerfade.next(container,elements, settings, current, last);
- }, settings.timeout);
- jQuery(elements[last]).show();
- }
- else if ( settings.type == 'random_start' ) {
- settings.type = 'sequence';
- var current = Math.floor ( Math.random () * ( elements.length ) );
- setTimeout(function(){
- jQuery.innerfade.next(container,elements, settings, (current + 1) % elements.length, current);
- }, settings.timeout);
- jQuery(elements[current]).show();
- }
- else {
- alert('Innerfade-Type must either be \'sequence\', \'random\' or \'random_start\'');
- }
- }
- };
- jQuery.innerfade.next = function(container, elements, settings, current, last) {
- //Set the container height for the current element
- jQuery(container).css('height', jQuery(elements[current]).height());
- if (settings.animationtype == 'slide') {
- if(jQuery(elements[current]).outerHeight() > jQuery(container).outerHeight()) {
- jQuery(container).css('height', jQuery(elements[current]).outerHeight());
- }
- jQuery(elements[last]).slideUp(settings.speed);
- jQuery(elements[current]).slideDown(settings.speed);
- }
- else if (settings.animationtype == 'fade') {
- jQuery(elements[last]).fadeOut(settings.speed);
- jQuery(elements[current]).fadeIn(settings.speed, function() {
- removeFilter(jQuery(this)[0]);
- });
- }
- else {
- alert('Innerfade-animationtype must either be \'slide\' or \'fade\'');
- }
- if (settings.type == "sequence") {
- if ((current + 1) < elements.length) {
- current = current + 1;
- last = current - 1;
- }
- else {
- current = 0;
- last = elements.length - 1;
- }
- }
- else if (settings.type == "random") {
- last = current;
- while (current == last) {
- current = Math.floor(Math.random() * elements.length);
- }
- }
- else {
- alert('Innerfade-Type must either be \'sequence\', \'random\' or \'random_start\'');
- }
- setTimeout((function() {
- jQuery.innerfade.next(container,elements, settings, current, last);
- }), settings.timeout);
- };
- })(jQuery);
- // **** remove Opacity-Filter in ie ****
- function removeFilter(element) {
- if(element.style.removeAttribute){
- element.style.removeAttribute('filter');
- }
- }
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