var elem = null, sett = null, curr = null, lass = 0, timer = null;

(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':          10000,
            '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);
			$('#main_slideshow').prepend('<div id="slidesNav"><a href="#" onclick="$.innerfade.choose(elem, sett, 0);">1</a><a href="#" onclick="$.innerfade.choose(elem, sett, 1);">2</a><a href="#" onclick="$.innerfade.choose(elem, sett, 2);">3</a><a href="#" onclick="$.innerfade.choose(elem, sett, 3);">4</a><a href="#" onclick="clearTimeout(timer)">||</a><a href="#" onclick="$.innerfade.next(elem, sett, curr, lass, 1);">></a></div>');	
            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") {
                $("#main_menu > ul > li:nth-child(1) > a").css("background-color","e64814");
				$("#slidesNav > a:nth-child(1)").css("color","e64814");
				elem = elements, sett = settings, curr = 1, lass = 0;
				timer=setTimeout(function() {
                    $.innerfade.next(elements, settings, 1, 0, 1);
                }, settings.timeout);
                $(elements[0]).show();
            }
		}
    };

    $.innerfade.next = function(elements, settings, current, last, play) {

		clearTimeout(timer);
		// fadeOut
		for (var i = 0; i < elements.length; i++) {
			$(elements[i]).fadeOut(settings.speed);
			$("#main_menu > ul > li > a").css("background-color","7e7d7c");
			$("#slidesNav > a").css("color","ffffff");
		}
		// fadeIn
		$(elements[current]).fadeIn(settings.speed, function() {
						removeFilter($(this)[0]);
					});
		$("#main_menu > ul > li:nth-child("+(current+1)+") > a").css("background-color","e64814");	
		$("#slidesNav > a:nth-child("+(current+1)+")").css("color","e64814");
		// next
		if ((current + 1) < elements.length) {
			current = current + 1;
			last = current - 1;
		} else {
			current = 0;
			last = elements.length - 1;
		} 
		elem = elements, sett = settings, curr = current, lass = last;
        if(play) {
			timer=setTimeout((function() {
				$.innerfade.next(elements, settings, current, last, 1);
			}), settings.timeout);
   			 };
		}
			 
	
	 $.innerfade.choose = function(elements, settings, current, last){
	 	 $.innerfade.next(elements, settings, current, last, 0);
	 }

})(jQuery);

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