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

// 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>
 *  
 *  $('#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)
 *  }); 
 *

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

var last_timeout_id = null;

(function($) {

    $.fn.innerfade = function(options) {
    	
    	if (options && options['onStartedProcessing']) 
    		$.innerfade.onStartedProcessing = options['onStartedProcessing'];
    	if (options && options['onFinishedProcessing']) 
    		$.innerfade.onFinishedProcessing = options['onFinishedProcessing'];

        return this.each(function() {   
            $.innerfade(this, options);
        });
    };

    $.innerfade = function(container, options) {
        var settings = {
        	'animationtype':    'fade',
            'speed':            600,
            'type':             'sequence',
            'timeout':          5000,
            'containerheight':  '375',
            'runningclass':     'innerfade',
            'children':         null,

            'onStartedProcessing': showCopy(),
            'onFinishedProcessing': null,
            
            'manualorder':		false,
            'startswith':		0//custom
        };
        if (options)
            $.extend(settings, options);
        if (settings.children === null)
            var elements = $(container).children();
        else
            var elements = $(container).children(settings.children);
        
        //		showAlt(elements[0]);

        
        if (elements.length > 1) {
            $(container).css('position', 'relative').css('height', settings.containerheight).addClass(settings.runningclass);
            
            var tmp_start = 0;
            var tmp_last = 0;
            if (settings.startswith > 0) {
            	tmp_start = settings.startswith;
            	tmp_last = tmp_start;
            	settings.startswith = 0;
            	
            	if (tmp_start + 1 >= elements.length) {
            		tmp_last = 0;
            	}
            }
            
            for (var i = 0; i < elements.length; i++) {
                $(elements[i]).css({'z-index' : String(elements.length-i), 'position':'absolute'}).hide();
            };
            
//            for (var i=0; i<tmp_start; i++) {
//            	var quick_settings = settings;
//            	quick_settings.animationType = "";
//            	$.innerfade.next(elements, settings, tmp_start+1, tmp_start);
//            	
//            }
            
            if (settings.type == "sequence") {
            	
            	window.last_timeout_id = setTimeout(function() {
                    $.innerfade.next(elements, settings, tmp_start+1, tmp_last);
                }, settings.timeout);
            	
                $(elements[tmp_start]).show();
                
            } else if (settings.type == "random") {
            		var last = Math.floor ( Math.random () * ( elements.length ) );
            		window.last_timeout_id = 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';
								var current = Math.floor ( Math.random () * ( elements.length ) );
								window.last_timeout_id = setTimeout(function(){
									$.innerfade.next(elements, settings, (current + 1) %  elements.length, current);
								}, settings.timeout);
								$(elements[current]).show();
						}	else {
							alert('Innerfade-Type must either be \'sequence\', \'random\' or \'random_start\'');
						}
				}
        
        return this;
    };

    $.innerfade.next = function(elements, settings, current, last) {
    	window.current_image_shown = current;
    	
    	if (this.onStartedProcessing != null) {
			this.onStartedProcessing(elements, settings, current, last);
		}
    	
    	if (settings.animationtype == 'slide') {
            $(elements[last]).slideUp(settings.speed);
            $(elements[current]).slideDown(settings.speed);
        } else if (settings.animationtype == 'fade') {
            $(elements[last]).fadeOut(settings.speed);
            $(elements[current]).fadeIn(settings.speed);//, function() {
//							removeFilter($(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\'');
    	}
    
        if (this.onFinishedProcessing) {
			this.onFinishedProcessing(elements, settings, current, last);
		}
        
        window.last_timeout_id = setTimeout((function() {
            $.innerfade.next(elements, settings, current, last);
            //showAlt(elements[current]);
        }), settings.timeout);
    };

})(jQuery);

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

function showAlt(element) {
	//DO NOT USE THIS FUNC (:alex)
	var alt = $(element).attr('alt');
	$('.message strong').html('');
	$('.message').hide();
	if ( alt != '' ) $('.message strong').html(alt);
	$('.message').fadeIn();
}
function showCopy() {
	$('#fx small').fadeIn();
}

function generateLinksToImages(where_id) {
	var html = "<ul>\n";
	
	for (i=1; i<= window.total_number_of_images; i++) {
		html += '<li><a href="#" class="notxt" id="slide-button'+i+'">' + i + '</a></li>' + "\n";
	}
	
	html += "</ul>";
	
	//$('#' + where_id).html(html);
	$('#'+where_id).html(html);
	
	for (i=1; i<= window.total_number_of_images; i++) {
		$('#slide-button' + i).data('photo_number', i);
		
		$('#slide-button' + i).click( function() {
			var photo_num = $(this).data('photo_number');
			show_slide(photo_num);
			$("#slide-status li").removeClass("active");
			$(this).parent().addClass("active");
		});
	}

	$('#slide-button1').parent().addClass("active");
}

function onFinishedProcessing() {
	
	$("#slide-status li").removeClass("active");
	$('#slide-button' + (window.current_image_shown*1+1)).parent().addClass("active");

}

function show_slide(photo_num) {

	clearTimeout(window.last_timeout_id);
	$('#fx').innerfade({'startswith' : photo_num - 1, 'manualorder' : true, 'onFinishedProcessing': onFinishedProcessing});
	$("#slide-status li").removeClass("active");

	$('#slide-button' + (window.current_image_shown*1+1)).parent().addClass("active");
	
//slider.innerfade().next(slider.elements, slider.settings, photo_num, 1)
	
//slider.jump(photo_num); //innerfade();//.next(slider.elements, slider.settings, 2, 1);
//$('div#fx').jump(photo_num); //innerfade();//.next(slider.elements, slider.settings, 2, 1);

//slider.innerfade.jump(1);
}