/* =========================================================
// 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/
*
*
* - content 1
* - content 2
* - content 3
*
*
* 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);
var biggestHeight=0;
for (var i = 0; i < elements.length; i++) {
jQuery(elements[i]).css('z-index', String(elements.length-i)).css('position', 'absolute').hide();
if (jQuery(elements[i]).height() > biggestHeight) {
biggestHeight = jQuery(elements[i]).height();
}
}
if (settings.type == "sequence") {
setTimeout(function() {
jQuery.innerfade.next(container,elements, settings, 1, 0);
}, settings.timeout);
jQuery(elements[0]).show();
jQuery(container).css('height', biggestHeight);
}
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) {
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');
}
}