//====================
function onResize(){
    $("#home").height(windowHeight);
    $("#contacts").height(Math.max(650, windowHeight - 78- $("#split-contacts").height()));
    $("#scroller").height($("#fixed-content-inner").height() - 78);
}
function Move(animate, from){
    
	var wPos = $window.scrollTop(); //position of the scrollbar
    targetPosition = -wPos;
    
    if(animate){
        if(scrollAnimId == 0){
            scrollAnimId = setInterval("updateScroll()", 33);
        }
    }else{
        divTop = targetPosition;
        $fixed_content_inner.css("margin-top", divTop);
        updateParallaxPos();
    }
}

var scrollAnimId = 0;
var targetPosition = 0;
var divTop = 0;

var $fixed_content_inner;
var $contentBlocks;
function updateScroll(){
    var delta = (targetPosition-divTop)/5;
    divTop = divTop + delta;
    if(Math.abs(delta)<0.05){
        clearInterval(scrollAnimId);
        scrollAnimId = 0;
        divTop = targetPosition;
    }
    $fixed_content_inner.css("margin-top", divTop);
    updateParallaxPos();
}
var setHashDelayId;
function updateParallaxPos(){
    
    $contentBlocks.each(function(index){
        var thisH = $(this).height();
        var thisAbsPos = $(this).position().top;
        var thisRelPos = $(this).offset().top;
        
        
        var thisRatio = -(thisAbsPos-windowHeight)/(thisH+windowHeight);
        
        
        
        if(thisRatio>=0 && thisRatio<=1){
            $(this).css("background-position", "50% " + (90-thisRatio*400) + "px");
            $(".black-shield", $(this)).css("opacity", Math.min(0.6, Math.max(0,thisRatio*4-1.8)));
            if(thisAbsPos<-660 && thisAbsPos>-1350){
                $(".copyright", $(this))
                    .css("margin-top", 800 + (-660 - thisAbsPos))
                    .css("margin-bottom", 600 - (-660 - thisAbsPos));
            }else if(thisAbsPos<=-1350){
            
                $(".copyright", $(this))
                    .css("margin-top", 800 + (-660 +1350))
                    .css("margin-bottom", 600 - (-660 +1350));            
            }else if(thisAbsPos>=-660){

            }
            
            //$(".copyright", $(this)).css("top", copRatio * 1050);
            //$(".copyright", $(this)).css("margin-top", (thisH*0.9)*thisRatio);
        }
        if((-divTop+windowHeight - 128)>thisRelPos && (-divTop+windowHeight-128)<thisRelPos+thisH){

            if(index != selectedMenuIndex){
                selectedMenuIndex = index;
                $("#menu>li>a").removeClass("active");
                if(selectedMenuIndex>0){
                    $("#menu>li>a").eq(selectedMenuIndex-1).addClass("active");
                }
                //hash change
                clearTimeout(setHashDelayId);
                //setHashDelayId = setTimeout(setHash, 1000, getId($(".parallax-anchor", $(this)).attr("id")))
                var hid = getId($(".parallax-anchor", $(this)).attr("id"));
                setHashDelayId = setTimeout(function(){
                    setHash(hid);
                }, 1000);
            }
        };
    });
    if(officeObj) officeObj.onScroll();

}
var selectedMenuIndex = 0;
$(document).ready(function() {
    $fixed_content_inner = $("#fixed-content-inner");
    $contentBlocks = $(".content-block")
    $("ul#menu > li > a").click(function(e){
		if($(this).data("type") == "external_link"){
			return;
		}
        e.preventDefault();
        var path = $(this).attr("href").substr(1);
        var parallaxAnchor = $("#anchor-"+path);
        var scrollTop = parallaxAnchor.offset().top - 240;
        $('html,body').animate(
            {
                scrollTop: scrollTop
            },
            {queue: false, easing: 'easeInOutExpo', duration: 2000}
        );
        if($(this).parent().index() == 4){
            if(!$("#projects-filter ul li").first().hasClass("active")){
                $("#projects-filter ul li a").first().click();
            }
        }
    });
    
    $(document).keydown(function(e){
    if(e.target instanceof HTMLInputElement || e.target instanceof HTMLTextAreaElement) return;
        switch(e.keyCode){
            case 38://up
                if($("ul#menu > li > a.active").length>0){
                    var index = $("ul#menu > li > a.active").parent().index();
                    if(index == 0){
                        $('html,body').animate(
                            {
                                scrollTop: 0
                            },
                            {queue: false, easing: 'easeInOutExpo', duration: 2000}
                        );
                    }else{
                        $("ul#menu > li > a").eq(index-1).click();
                    }
                }
                return false;
            break;
            case 40://down
                if($("ul#menu > li > a.active").length>0){
                    var index = $("ul#menu > li > a.active").parent().index();
                    $("ul#menu > li > a").eq(index+1).click();
                }else{
                    $("ul#menu > li > a").first().click();
                }
                return false;
            break;
            case 8://backspace
            break;
            default:
                 console.log(e.keyCode);
            break;
        }
    });
	
	windowHeight = $window.height();
	windowWidth = $window.width();

    var hash = getHash();
    $window.resize(function(){
        windowHeight = $window.height();
        windowWidth = $window.width();
        onResize();
        Move(false, "resize");
    });	
    $(window).scroll(function(event){ //when the user is scrolling...
        Move(!jQuery.browser.opera, "scroll");
    });	
    $window.bind('mousewheel', function(){
        $('html,body').stop();
    });
    
    onResize();
    Move(false, "firsttime");
    console.log(hash);
    if(hash == "newslettersarchive" || hash=="sprendimu-era"){
        $("#menu li a").eq(0).click();
        aboutMenu.clickLink("newslettersarchive");
    }else if(hash == "fima-service-center"){
        if($('#menu-kontaktai').length>0)
        {
            console.log('trigger');
            $('#menu-kontaktai').click();
        }
        else{
            $('#menu li a').last().click();
        }
        $('#off-locations li a').last().click();
    }else if(hash){
        $.browser.chrome = /chrome/.test(navigator.userAgent.toLowerCase()); 
        var parallaxAnchor = $("#anchor-"+hash);
        if($.browser.chrome){
           return;
        }
        if(parallaxAnchor.length){
            $('html,body').scrollTop(parallaxAnchor.offset().top-240);
            Move(false, "hash");
        }
    }else{
        setHash("top");
    }
    $(window).bind( 'hashchange', function( event ) {
        var hash = getHash();
        console.log('hashchange', hash);
        if(hash && hash != "top"){
            var parallaxAnchor = $("#anchor-"+hash);
            if(parallaxAnchor.length){
                $('html,body').scrollTop(parallaxAnchor.offset().top-240);
                Move(false, "hashchange");
            }
        }else{
            $('html,body').scrollTop(0);
            Move(false, "hashchange");
        }
    });
});