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

// Edited by Abercrombie & Fitch 2010

 *
 *  <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 getâ??s applied (Default: 'innerfade'),
 *	  children: optional children selector (Default: null)
 *	  autoplay: optional autoplay selector (Default: true);
 *  }); 
 *

// ========================================================= */
var last = 0;
(function($) {
    $.fn.innerfade = function(options) {
    	var settings;
   		var elements;
   		var current;
        return this.each(function() {   
            $.innerfade(this, options);
        });
    };
	function unToggle(){$("#toggleHolder .toggleBtns").removeClass('toggleOnLock');}
    $.innerfade = function(container, options) {
        settings = {
        	'animationtype':    'fade',
            'speed':            'normal',
            'type':             'sequence',
            'timeout':          2000,
            'containerheight':  'auto',
            'runningclass':     'innerfade',
            'children':         null,
            'autoplay':				true
        };
        if (options)
            $.extend(settings, options);
        if (settings.children === null)
            elements = $(container).children();
        else
            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") {
            	if(settings.autoplay){
	                setTimeout(function() {
    	                $.innerfade.next(elements, settings, 1, 0);
        	        }, settings.timeout);
        	     }
            	 $(elements[0]).show();
            } else if (settings.type == "random") {
           		var last = Math.floor ( Math.random () * ( elements.length ) );
           		if(settings.autoplay){
	                setTimeout(function() {
                    	do { 
							current = Math.floor ( Math.random ( ) * ( elements.length ) );
						} while (last == current );      
						$.innerfade.next(elements, settings, current, last);
                	}, settings.timeout);
                }
                $(elements[last]).show();
			} else if ( settings.type == 'random_start' ) {
					settings.type = 'sequence';
					current = Math.floor ( Math.random () * ( elements.length ) );
					if(settings.autoplay){
						setTimeout(function(){
							$.innerfade.next(elements, settings, (current + 1) %  elements.length, current);
						}, settings.timeout);
					}
					$(elements[current]).show();
			}
		}
    };
    $.innerfade.next = function(elements, settings, current, timer) {
	    if(rotateFade){
		    unToggle();
		    $("#toggleHolder .toggle0"+current).addClass('toggleOnLock');
	 		if (settings.animationtype == 'fade') {
	            $(elements).fadeOut(settings.speed);
	            $(elements[current]).fadeIn(settings.speed, function() {
					removeFilter($(this)[0]);
				});
	        }
	        if (settings.type == "sequence") {
	            if ((current + 1) < elements.length) {
	                current = current + 1;
	                last = current - 1;
	            } else {
	                current = 0;
	                last = elements.length - 1;
	            }
	        }
	        if(timer=='stop'){
	
	        }else{
		        setTimeout((function() {
		            $.innerfade.next(elements, settings, current);
		        }), settings.timeout);        
	        }
		}
    };
    $.innerfade.toggleNext = function() {
    	var $currentElement = $(elements).filter(':visible');
		current = $(elements).index($currentElement);
        if (settings.type == "sequence") {
            if ((current + 1) < elements.length) {
                current = current + 1;
                last = current - 1;
            } else {
                current = 0;
                last = elements.length - 1;
            }
        }     
        if (settings.animationtype == 'fade') {
            $(elements).fadeOut(settings.speed);
            $(elements[current]).fadeIn(settings.speed, function() {
				removeFilter($(this)[0]);
			});
        }
    };  
    $.innerfade.nextB = function(elements, settings, current, timer) {
		unToggle();
		$("#toggleHolder .toggle0"+current).addClass('toggleOnLock');
  		if (settings.animationtype == 'fade') {
            $(elements).fadeOut(settings.speed);
            $(elements[current]).fadeIn(settings.speed, function() {
				removeFilter($(this)[0]);
			});
        }
        if (settings.type == "sequence") {
            if ((current + 1) < elements.length) {
                current = current + 1;
                last = current - 1;
            } else {
                current = 0;
                last = elements.length - 1;
            }
        }     
    };     
    
    $.innerfade.togglePrev = function() {
		var $currentElement = $(elements).filter(':visible');
		current = $(elements).index($currentElement);
        if (settings.type == "sequence") {
            if ((current - 1) >= 0) {
                current = current - 1;
                last = current + 1;
            } else {
                current = elements.length - 1;
                last = 0;
            }
        }     
       if (settings.animationtype == 'fade') {
            $(elements).fadeOut(settings.speed);
            $(elements[current]).fadeIn(settings.speed, function() {
				removeFilter($(this)[0]);
			});
        }
    }; 
    
})(jQuery);

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