/* =========================================================

// 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/

Highly modified by Blake Kus <blakekus@gmail.com> 2011-06-01 http://blakek.us
Added:
 - Next function
 - Previous function
 - Pause on hover
 - Next/previous controls

 *
 *  <ul id="news"> 
 *      <li>content 1</li>
 *      <li>content 2</li>
 *      <li>content 3</li>
 *  </ul>
 *  
 *  $('#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($) {
    $.fn.innerfade = function(options) {
        return this.each(function() {   
            $.innerfade(this, options);
        });
    };
    $.innerfade = function(container, options) {
		$.innerfade.container = container;
		$.innerfade.settings = {
			'animationtype':    'fade',
			'speed':            'normal',
			'type':             'sequence',
			'timeout':          2000,
			'containerheight':  'auto',
			'runningclass':     'innerfade',
			'children':         null
		};
		if (options)
			$.extend($.innerfade.settings, options);
		if ($.innerfade.settings.children === null)
			$.innerfade.elements = $(container).children();
		else
			$.innerfade.elements = $(container).children($.innerfade.settings.children);
		if ($.innerfade.elements.length > 1) {
			$($.innerfade.container).css('position', 'relative').css('height', $.innerfade.settings.containerheight).addClass($.innerfade.settings.runningclass);
			$($.innerfade.container).hover(
				function(){
					clearTimeout($.innerfade.timercontrols);
					$.innerfade.timercontrols = setTimeout((function() {
						$('.'+$.innerfade.settings.runningclass+'-controls > div').fadeIn('fast');
					}), 100);
					clearTimeout($.innerfade.timer);
					$.innerfade.paused = true;
				},
				function(){
					clearTimeout($.innerfade.timercontrols);
					$.innerfade.timercontrols = setTimeout((function() {
						$('.'+$.innerfade.settings.runningclass+'-controls > div').fadeOut('fast');
					}), 100);
					$.innerfade.paused = false;
					clearTimeout($.innerfade.timer);
					$.innerfade.timer = setTimeout((function() {
						$.innerfade.process();
					}), 1000);
				}
			);
			for (var i = 0; i < $.innerfade.elements.length; i++) {
				//$($.innerfade.elements[i]).css('z-index', String($.innerfade.elements.length-i)).css('position', 'absolute').hide();
				$($.innerfade.elements[i]).hide();
			};
			if ($.innerfade.settings.type == "sequence") {
				clearTimeout($.innerfade.timer);
				$.innerfade.timer = setTimeout(function() {
					$.innerfade.process();
				}, $.innerfade.settings.timeout);
				$($.innerfade.elements[0]).show();
			} else if ($.innerfade.settings.type == "random") {
				$.innerfade.last = Math.floor ( Math.random () * ( $.innerfade.elements.length ) );
				clearTimeout($.innerfade.timer);
				$.innerfade.timer = setTimeout(function() {
					do { 
						$.innerfade.current = Math.floor ( Math.random ( ) * ( $.innerfade.elements.length ) );
					} while ($.innerfade.last == $.innerfade.current );             
					$.innerfade.process();
				}, $.innerfade.settings.timeout);
				$($.innerfade.elements[$.innerfade.last]).show();
			} else if ( $.innerfade.settings.type == 'random_start' ) {
				$.innerfade.settings.type = 'sequence';
				$.innerfade.last = Math.floor ( Math.random () * ( $.innerfade.elements.length ) );
				$.innerfade.current = ($.innerfade.last + 1) % $.innerfade.elements.length;
				clearTimeout($.innerfade.timer);
				$.innerfade.timer = setTimeout(function(){
					$.innerfade.process();
				}, $.innerfade.settings.timeout);
				$($.innerfade.elements[$.innerfade.current]).show();
			}	else {
				alert('Innerfade-Type must either be \'sequence\', \'random\' or \'random_start\'');
			}
		}
	};
	$.innerfade.container;
	$.innerfade.settings;
	$.innerfade.elements;
	$.innerfade.current = 0;
	$.innerfade.last = 0;
	$.innerfade.timer;
	$.innerfade.timercontrols;
	$.innerfade.paused = false;
	$.innerfade.prev = function() {
		$.innerfade.settings.oldtype = $.innerfade.settings.type;
		$.innerfade.settings.type = "manual";
		clearTimeout($.innerfade.timer);
		$.innerfade.last = $.innerfade.current;
		if (($.innerfade.current - 1) > -1) {
			$.innerfade.current = $.innerfade.current - 1;
		} else {
			$.innerfade.last = 0;
			$.innerfade.current = $.innerfade.elements.length - 1;
		}
		$.innerfade.process();
	};
	$.innerfade.next = function() {
		$.innerfade.settings.oldtype = $.innerfade.settings.type;
		$.innerfade.settings.type = "manual";
		clearTimeout($.innerfade.timer);
		$.innerfade.last = $.innerfade.current;
		if (($.innerfade.current + 1) < $.innerfade.elements.length) {
			$.innerfade.current = $.innerfade.current + 1;
		} else {
			$.innerfade.current = 0;
		}
		$.innerfade.process();
	};
	$.innerfade.process = function() {
		if($.innerfade.paused === false || $.innerfade.settings.type == "manual"){
			if ($.innerfade.settings.type == "sequence") {
				$.innerfade.last = $.innerfade.current;
				if (($.innerfade.current + 1) < $.innerfade.elements.length) {
					$.innerfade.current = $.innerfade.current + 1;
				} else {
					$.innerfade.current = 0;
				}
			} else if ($.innerfade.settings.type == "random") {
				$.innerfade.last = $.innerfade.current;
				while ($.innerfade.current == $.innerfade.last)
					$.innerfade.current = Math.floor(Math.random() * $.innerfade.elements.length);
			} else if ($.innerfade.settings.type == "manual") {
				$.innerfade.settings.type = $.innerfade.settings.oldtype;
			} else
				alert('Innerfade-Type must either be \'sequence\', \'random\' or \'random_start\'');
			if ($.innerfade.settings.animationtype == 'slide') {
				$($.innerfade.elements[$.innerfade.last]).slideUp($.innerfade.settings.speed);
				$($.innerfade.elements[$.innerfade.current]).slideDown($.innerfade.settings.speed);
			} else if ($.innerfade.settings.animationtype == 'fade') {
				$($.innerfade.elements[$.innerfade.last]).fadeOut($.innerfade.settings.speed);
				$($.innerfade.elements[$.innerfade.current]).fadeIn($.innerfade.settings.speed, function() {
					removeFilter($(this)[0]);
				});
			} else
				alert('Innerfade-animationtype must either be \'slide\' or \'fade\'');
			clearTimeout($.innerfade.timer);
			$.innerfade.timer = setTimeout((function() {
				$.innerfade.process();
			}), $.innerfade.settings.timeout);
		}
    };
})(jQuery);
// **** remove Opacity-Filter in ie ****
function removeFilter(element) {
	if(element.style.removeAttribute){
		element.style.removeAttribute('filter');
	}
}