// Header Interaction

$.fn.header = function () {

	$(function() {
		
		var $layer = $('div.aesthetics div.reveal');
  		var $body  = $('html');
		
		$(document).ready(function() {
			$('div.reveal').addClass('hidden');
		});
		
		$('div.aesthetics h2').click(
			function(event) {
				event.stopPropagation();
				$('div.tree-holder').toggleClass('tree-aesthetics');
				$('div.aesthetics h2 a').toggleClass('current');
				$('div.aesthetics div.reveal').slideToggle(300);
				$('div.usability, div.visibility, div.flexibility').toggle(0);
			}
		);
		
		$('div.usability h2').click(
			function(event) {
				event.stopPropagation();
				$('div.tree-holder').toggleClass('tree-usability');
				$('div.usability h2 a').toggleClass('current');
				$('div.usability div.reveal').slideToggle(300);
				$('div.aesthetics, div.visibility, div.flexibility').toggle(0);
			}
		);
		
		$('div.visibility h2').click(
			function(event) {
				event.stopPropagation();
				$('div.tree-holder').toggleClass('tree-visibility');
				$('div.visibility h2 a').toggleClass('current');
				$('div.visibility div.reveal').slideToggle(300);
				$('div.aesthetics, div.usability, div.flexibility').toggle(0);
			}
		);
		
		$('div.flexibility h2').click(
			function(event) {
				event.stopPropagation();
				$('div.tree-holder').toggleClass('tree-flexibility');
				$('div.flexibility h2 a').toggleClass('current');
				$('div.flexibility div.reveal').slideToggle(200);
				$('div.aesthetics, div.visibility, div.usability').toggle(0);
			}
		);
		$('body').click(
			function(event) {
				event.stopPropagation();
				$('div.tree-holder').removeClass('tree-usability');
				$('div.tree-holder').removeClass('tree-aesthetics');
				$('div.tree-holder').removeClass('tree-visibility');
				$('div.tree-holder').removeClass('tree-flexibility');
				$('div.usability h2 a, div.aesthetics h2 a, div.visibility h2 a, div.flexibility h2 a').removeClass('current');
				$('div.usability div.reveal, div.aesthetics div.reveal, div.visibility div.reveal, div.flexibility div.reveal').slideUp(200);
				$('div.usability, div.aesthetics, div.visibility, div.flexibility').show(0);
			}
		);
	});
};

function loadPopup(){
	//loads popup only if it is disabled
	if(popupStatus==0){
		$("#backgroundPopup").css({
			"opacity": "0.7"
		});
		$("#backgroundPopup").fadeIn("slow");
		$("#popupContact").fadeIn("slow");
		popupStatus = 1;
	}
}

//disabling popup with jQuery magic!
function disablePopup(){
	//disables popup only if it is enabled
	if(popupStatus==1){
		$("#backgroundPopup").fadeOut("slow");
		$("#popupContact").fadeOut("slow");
		popupStatus = 0;
	}
}


//CONTROLLING EVENTS IN jQuery
$(document).ready(function(){
	
	//LOADING POPUP
	//Click the button event!
	$("#button").click(function(){
		//centering with css
		centerPopup();
		//load popup
		loadPopup();
	});
				
	//CLOSING POPUP
	//Click the x event!
	$("#popupContactClose").click(function(){
		disablePopup();
	});
	//Click out event!
	$("#backgroundPopup").click(function(){
		disablePopup();
	});
	//Press Escape event!
	$(document).keypress(function(e){
		if(e.keyCode==27 && popupStatus==1){
			disablePopup();
		}
	});

});

// Portfolio Home Page Carousel
	
$.fn.carousel = function () {

    function repeat(str, num) {
        return new Array( num + 1 ).join( str );
    }
  
    return this.each(function () {
        var $wrapper = $('> div', this).css('overflow', 'hidden'),
            $slider = $wrapper.find('> ul'),
            $items = $slider.find('> li'),
            $single = $items.filter(':first'),
            
            singleWidth = $single.outerWidth(), 
            visible = Math.ceil($wrapper.innerWidth() / singleWidth), // note: doesn't include padding or border
            currentPage = 1,
            pages = Math.ceil($items.length / visible);            


        // 1. Pad so that 'visible' number will always be seen, otherwise create empty items
        if (($items.length % visible) != 0) {
            $slider.append(repeat('<li class="empty" />', visible - ($items.length % visible)));
            $items = $slider.find('> li');
        }

        // 2. Top and tail the list with 'visible' number of items, top has the last section, and tail has the first
        $items.filter(':first').before($items.slice(- visible).clone().addClass('cloned'));
        $items.filter(':last').after($items.slice(0, visible).clone().addClass('cloned'));
        $items = $slider.find('> li'); // reselect
        
        // 3. Set the left position to the first 'real' item
        $wrapper.scrollLeft(singleWidth * visible);
        
        // 4. paging function
        function gotoPage(page) {
            var dir = page < currentPage ? -1 : 1,
                n = Math.abs(currentPage - page),
                left = singleWidth * dir * visible * n;
            
            $wrapper.filter(':not(:animated)').animate({
                scrollLeft : '+=' + left
            }, 250, function () {
                if (page == 0) {
                    $wrapper.scrollLeft(singleWidth * visible * pages);
                    page = pages;
                } else if (page > pages) {
                    $wrapper.scrollLeft(singleWidth * visible);
                    // reset back to start position
                    page = 1;
                } 

                currentPage = page;
            });                
            
            return false;
        }
        
        $wrapper.before('<a class="arrow forward">&gt;</a>');
        
        // 5. Bind to the forward and back buttons
        
        $('a.forward', this).click(function () {
            return gotoPage(currentPage + 1);
        });
        
        // create a public interface to move to a specific page
        $(this).bind('goto', function (event, page) {
            gotoPage(page);
        });
    });  
};

// Portfolio Tabs

$.fn.tabs = function () {

$(function () {
	var tabContainers = $('div#tabs > div');
	tabContainers.hide().filter(':first').show();
			
	$('ul.portfolio-nav a').click(function () {
		tabContainers.hide();
		tabContainers.filter(this.hash).fadeIn(300, function() {if(jQuery.browser.msie)	$(this).get(0).style.removeAttribute('filter');});
		$('ul.portfolio-nav a').removeClass('selected');
		$(this).addClass('selected');
		return false;
	}).filter(window.location.hash ? '[hash=' + window.location.hash + ']' : ':first').click();
	
	$('document').ready(function () {
		scroll(0,0);
	});
			
});

};