var queue = 0;

$('document').ready(function() {
	if(window.addEventListener) {
		window.addEventListener("hashchange", hashChange, false);
	}
	else if (window.attachEvent) {
		window.attachEvent("hashchange", hashchange, false);
	}
    // Define window location variables
    var windowHost = window.location.host,
        windowHash = window.location.hash,
        windowPath = window.location.pathname;

    // Grab the window hash value, by removing any special characters, i.e. '#!/'
    windowHash = windowHash.replace('#!/', '/');
    windowHash = windowHash ? windowHash : '/';

    // On initial page load, if user goes directly to '/sample-page' for example, redirect to '/#!/sample-page'
   	if(windowPath !== '/') {
   		var path = windowPath.replace('/', '');
   		window.location = 'http://' + windowHost + '/#!/' + path;
   	} else if(windowHash === '/') {
    	window.location = 'http://' + windowHost + '/#!' + windowPath;
    }

    // Load content on menu click
    $('#nav-main ul li.menu-item-object-page a, .crosslink').live('click', function(e) {
        e.preventDefault();

        var currentHash = window.location.hash,
        	currentHash = currentHash.replace('#!', '');

        $('.current_page_item').removeClass('current_page_item');
        $(this).parent().addClass('current_page_item');

        var page = $(this).attr('href');
        page = page.replace('http://' + windowHost + '/', '#!/');


        var currentPage = page.replace('#!', '');

        if(currentHash !== currentPage) {
        	loadContent(page.replace('#!', ''), '#primary');
        }
    });

	// Set navigation active state on load
    if(!$('#nav-main ul li.menu-item-object-page a[href="http://' + windowHost + windowHash + '"]').parent().hasClass('current_page_item')) {
        $('.current_page_item').removeClass('current_page_item');
        $('#nav-main ul li.menu-item-object-page a[href="http://' + windowHost + windowHash + '"]').parent().addClass('current_page_item');
    }

    // Load content of hash page on load
    if(windowHash !== '/') {
    	loadContent(windowHash, '#primary');
    }
});

function hashChange() {
	var page = window.location.hash;
	loadContent(page.replace('#!', ''), '#primary');
}

// Load content from other pages
function loadContent(page, shell) {
	if(queue === 0) {
		window.location = 'http://' + window.location.host + '/#!' + page;
		queue = 1;
		$(shell).html('<div class="loadIndicator"></div>');
	    $(shell).load(page + ' #content', function() {
	        if($('#content').is(':hidden')) {
	            $('#content').fadeIn(1000, function() {
	            	queue = 0;
	            });
	        }
	    });
	}
}