var FKF = {};
FKF.slider = function(){
    this.items = [];
    this.active = 0;
    var self = this;

    this.init = function(block,num) {
        this.block = block;
        this.num = num;

        this.$back = $(".back",this.block);
        this.$forward = $(".forward",this.block);
        this.$content = $(".content",this.block);
        this.$window = $(".window",this.block);

        this.didScroll = false;
        this.lastcssrule = '';

        $(window).resize(function(){self.didScroll = true })
        setInterval(function() {
            if ( self.didScroll ) {
                self.didScroll = false;
                self.refindItems();
            }
        }, 250);

        this.active = 0;
        this.refindItems();

        this.$back.click(function(){self.back()});
        this.$forward.click(function(){self.forward()});
        this.$window.scroll(function(){self.onscroll()});
        var ua = navigator.userAgent;
        if (ua.match(/phone|iphone|itouch|ipod|symbian|android|htc_|htc-|palmos|blackberry|opera mini|mobi|windows ce|nokia|fennec|hiptop|kindle|mot |mot-|webos\/|samsung|sonyericsson|^sie-|nintendo|mobile/i)) {
            this.$window.css('overflow','scroll');
        }
        if( ua.indexOf("Android") >= 0 ) {
          var androidversion = parseFloat(ua.slice(ua.indexOf("Android")+8)); 
          if (androidversion < 4)
          {
              this.$back.show();
              this.$forward.show();
          }
        }
        this.afterInit();
    }
    
    this.calculateWidths = function() {
        var posx = 0;
        for(var i=0;i<this.items.length;i++) {
            this.items[i].posx = posx;
            posx += $(this.items[i]).width();
        }
        this.$content.width(posx);
    }

    this.refindItems = function(redraw) {
        redraw=!!redraw;
        this.items = $(".item",this.block);
        this.calculateWidths();
        this.scrollMaxLeft = this.$window[0].scrollWidth - this.$window[0].clientWidth;
        this.onloading = false;
        if (redraw) this.scroll(0);
    }
    this.onscroll = function(add) {
        if (!this.onloading && this.$window.scrollLeft() >= this.scrollMaxLeft-this.$window.width()) this.preLoad();
    }
    this.calculatePos = function(active) {
        return this.items[active].posx;
    }
    this.scroll = function(add) {
        var scrollpos = this.$window.scrollLeft();
        if (Math.abs(this.calculatePos(this.active)-this.$window.scrollLeft())>2) {
            for (var i=0;i<this.items.length;i++) {
                if (this.calculatePos(i)>scrollpos) {
                    this.active = (add>0) ? i : i-1;
                    break;
                }
            }
        } else {
            this.active+=add;
        }

        if (!this.items[this.active]) return;
        this.afterScroll()

        this.$window.animate({ // kepek mozgatasa
                scrollLeft: this.calculatePos(this.active)
        }, 200);
    }

    this.preLoad = function() {} // felul definialhato

    this.forward = function() {
        if (this.active<this.items.length-1) this.scroll(1);
    }

    this.back = function() {
        if (this.active>0) this.scroll(-1);
    }

    this.afterScroll = function() {}

    this.afterInit = function() {}

    return this;
};
/* GALÉRIA */
function aScrollLeft(aObj) {
    new_frame_no = ((frame_no/1)-1);
    new_left = ((frame_left/1) + move_by);
    new_left_attr = new_left+"px";
    if(new_frame_no > 0) {
        $('#gallery_tns').css({left: new_left_attr});
        frame_left = new_left;
        frame_no = new_frame_no;
    }
    $(aObj).trigger('blur');
}

function aScrollRight(aObj) {
    new_frame_no = ((frame_no/1)+1);
    new_left = ((frame_left/1) - move_by);
    new_left_attr = new_left+"px";
    if(new_frame_no < max_clicks) {
        $('#gallery_tns').css({left: new_left_attr});
        frame_left = new_left;
        frame_no = new_frame_no;
    }
    $(aObj).trigger('blur');
}

function galeriaSwitchTo(pic, lbId, aObj, title) {
    $('a.selected').removeClass('selected');
    $(aObj).addClass('selected').trigger('blur');
    var altText = $('img', aObj).attr('alt');

    var w = $('img', aObj).width();
    var h = $('img', aObj).height();
	var max = 650;
	$('#gallery_pic .imageContainer img').hide();
    if (w && h) {
        if (w > h) {
            $('#gallery_pic .imageContainer img').css({'width' : max+'px', 'height':'auto'});
        } else {
            $('#gallery_pic .imageContainer img').css({'height' : max+'px', 'width':'auto'});
        }
    }
    var gal = $(aObj).parents('#gallery:first')[0];
    $('#gallery_pic .imageContainer img:first',gal).attr("src", pic);
	$('#gallery_pic .imageContainer img:first',gal).load(function() {
		$(this).show();
	});
    if (altText) {
        $('#gallery_pic .imageContainer img:first',gal).attr('alt', title).attr('title', title);
        $('#gallery_text:first',gal).text(altText);
        $('.imageTitle').html(altText);
    }
    bigPic = pic;
    lightboxId = lbId;
}

function initGalleryScroller() {
    var timer = null;

    $('#gallery_pic img, #gallery_button1_large, #gallery_button2_large').hover(function() {
        $('#gallery_button1_large, #gallery_button2_large').show();
        if (timer) {
            clearTimeout(timer);
            timer = null;
        }
    }, function() {
        if (! timer) {
            timer = setTimeout(function() {
                $('#gallery_button1_large, #gallery_button2_large').hide();
            }, 50);
        }
    });

    $('#gallery_pic img').click(function(e) {
        if (e.pageX < $(this).offset().left + $(this).width()/2) {
            $('#gallery_tns_container a.selected').prev().click();
        } else {
            $('#gallery_tns_container a.selected').next().click();
        }
    });

    var altText = $('#gallery_pic img').attr('alt');
    $('#gallery_text').text(altText);

}