(function($) {

	$.fn.innerfade = function(options) {
		return this.each(function() {   
			$.innerfade(this, options);
		});
	};
	
	$.innerfade = function(container, options) {
		var settings = {
				'animationtype':	'fade',
			'speed':			'normal',
			'type': 			'sequence',
			'timeout':  		2000,
			'containerheight':  'auto',
			'runningclass': 	'innerfade',
			'children': 		null
		};
		if (options)
			$.extend(settings, options);
		if (settings.children === null)
			var elements = $(container).children();
		else
			var elements = $(container).children(settings.children);
		if (elements.length > 1) {
			$(container).css('position', 'relative').css('height', settings.containerheight).addClass(settings.runningclass);
			for (var i = 0; i < elements.length; i++) {
				$(elements[i]).css('z-index', String(elements.length-i)).css('position', 'absolute').hide();
			};
			if (settings.type == "sequence") {
				setTimeout(function() {
					$.innerfade.next(elements, settings, 1, 0);
				}, (settings.timeout-settings.speed));
				$(elements[0]).show();
			} 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 ); 			
										$.innerfade.next(elements, settings, current, last);
				}, (settings.timeout-settings.speed));
				$(elements[last]).show();
						} else if ( settings.type == 'random_start' ) {
								settings.type = 'sequence';
								var current = Math.floor ( Math.random () * ( elements.length ) );
								setTimeout(function(){
									$.innerfade.next(elements, settings, (current + 1) %  elements.length, current);
								}, (settings.timeout-settings.speed));
								$(elements[current]).show();
						}	else {
							alert('Innerfade-Type must either be \'sequence\', \'random\' or \'random_start\'');
						}
				}
	};

	$.innerfade.next = function(elements, settings, current, last) {
		if (settings.animationtype == 'slide') {
			$(elements[last]).slideUp(settings.speed);
			$(elements[current]).slideDown(settings.speed);
		} else if (settings.animationtype == 'fade') {
			
			var lastele = elements[last];
			
			$(elements[last]).fadeOut(settings.speed);// Hier sitzt der Beelzebub. Dieses fadeout sollte ein schlagartiges hide sein, darf aber erst nach der animation in der nächsten Zeile erfolgen... 
			//$(elements[current]).css("z-index", "5")
			$(elements[current]).fadeIn(settings.speed, function() {
							if($.browser.msie ) { removeFilter($(this)[0]) }//;
							//delayedHide( lastele );
							//$(lastele).hide();
							//$(lastele).css("z-index", "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() {
			$.innerfade.next(elements, settings, current, last);
		}), settings.timeout);
	};

})(jQuery);

// **** remove Opacity-Filter in ie ****
function removeFilter(element) {
	if(element.style.removeAttribute){
		element.style.removeAttribute('filter');
	}
}