function cancelEvent(e)
{
	if(!e)
		e = window.event;
	if(!e)
		return false;
	if(e.stopPropagation)
		e.stopPropagation();
	if(e.preventDefault)
		e.preventDefault();
	e.cancelBubble = true;
	e.cancel = true;
	e.returnValue = false;
	return false;
}

function toggle_language_dropdown()
{
	$('#language_dropdown').fadeToggle();
	cancelEvent();
}

function hide_cart_content()
{
	$('#cart_content').slideUp();
}

function toggle_menu()
{
	$('.show_menu_button')[0].classList.toggle("change");
	$('#top_menu_content_wrapper').slideToggle();
}

function toggle_cart_content()
{
	if ($('#cart_content').is(':visible'))
		$('#cart_content').slideUp();
	else
	{
		$('#searchbox').slideUp();
		$('#cart_content').load('cart_cmd.php?cmd=content&lang='+lang).slideDown();
	}
	toggle_menu();
}
function focus_search()
{
	if ($('#searchfield').attr('not_yet_clicked') == 'true')
		$('#searchfield').removeAttr('not_yet_clicked').val('');
}

function zoom_in()
{
	$('body').css('font-size','150%');
}
function zoom_out()
{
	$('body').css('font-size','150%');
}


function toggle_search()
{
	$('#searchbox').slideToggle();
	$('#cart_content').slideUp();
	if ($('#searchbox').is(':visible'))
		$('#searchfield').focus();
	toggle_menu();
}

function install_navbar()
{
	$('#logo').click(function(event){document.location='index.php';});

	$('#navbar li').click(function(event) {
		event.preventDefault();
		if ($(this).attr('url') != null)
			document.location = $(this).attr('url');
		else if ($(this).attr('filter') != null)
			document.location = 'search_results.php?filter='+encodeURIComponent($(this).attr('filter'))+'&lang='+lang;
		else if ($(this).attr('slideout') != null)
		{
			$('.slide_box').slideUp();
			$('#'+$(this).attr('slideout')).slideToggle();
		}
	});

	$.get('cart_cmd.php?cmd=count&lang='+lang,function(res)
	{
		$('#cart_counter').html(res);
		if (res != 0)
			$('#cart_counter').removeAttr('empty');
		else
			$('#cart_counter').attr('empty','empty');
	});
}


function install_navbar2()
{
	$('#logo').click(function(event){document.location='index.php';});

	$('.shortcut').click(function(event) {
		event.preventDefault();
		if ($(this).attr('url') != null)
			document.location = $(this).attr('url');
		else if ($(this).attr('filter') != null)
			document.location = 'search_results.php?filter='+encodeURIComponent($(this).attr('filter'))+'&lang='+lang;
		else if ($(this).attr('slideout') != null)
		{
			$('.slide_box').slideUp();
			if (! $('#'+$(this).attr('slideout')).is(':visible'))
				$('#'+$(this).attr('slideout')).slideDown();
		}
	});

	$.get('cart_cmd.php?cmd=count&lang='+lang,function(res)
	{
		$('.cart_counter').html(res);
		if (res != 0)
			$('.cart_counter').removeAttr('empty');
		else
			$('.cart_counter').attr('empty','empty');
	});
}



function cart_remove(event,btn)
{
	cancelEvent(event);
	var url = 'cart_cmd.php?cmd=remove&cart_item_id='+$(btn).parents('li[cart_item_id]').attr('cart_item_id');
	url += '&lang='+lang;
	$.get(url, function(res) {
		if (res == 'ok')
		{
			$.get('cart_cmd.php?cmd=count&lang='+lang,function(res) {
				$('#cart_counter, .cart_counter').html(res);
				if (res != 0)
					$('#cart_counter, .cart_counter').removeAttr('empty');
				else
					$('#cart_counter, .cart_counter').attr('empty','empty');
			});

			$('#cart_content').load('cart_cmd.php?cmd=content&lang='+lang);
		}
		else
			alert(res);
	});
}
function cart_item_click(event,li)
{
	cancelEvent(event);
	document.location='detail.php?search_key='+$(li).attr('search_key')+'&series_number_str='+$(li).attr('series_number_str');
}

function setCookie(name,value,days) {
    var expires = "";
    if (days) {
        var date = new Date();
        date.setTime(date.getTime() + (days*24*60*60*1000));
        expires = "; expires=" + date.toUTCString();
    }
    document.cookie = name + "=" + (value || "")  + expires + "; path=/";
}
function getCookie(name) {
    var nameEQ = name + "=";
    var ca = document.cookie.split(';');
    for(var i=0;i < ca.length;i++) {
        var c = ca[i];
        while (c.charAt(0)==' ') c = c.substring(1,c.length);
        if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
    }
    return null;
}
function eraseCookie(name) {
    document.cookie = name+'=; Max-Age=-99999999;';
}

function coupon_change(inp)
{
	save_checkout_setting(inp);
	$('#cart_content').load('cart_cmd.php?cmd=content&lang='+lang);
}

function change_location(sel)
{
	setCookie('location',$(sel).val());
	$('#cart_content').load('cart_cmd.php?cmd=content&lang='+lang);
}

function save_checkout_setting(field)
{
	var n = $(field).attr('name');
	setCookie(n,$(field).val());
}

function checkout()
{
	var loc = $('#location').val();
	if (loc == '')
		alert("you must choose a location first");
	else
	{
		$('#checkout_btn').hide();
		$('#checkout_info').slideDown();

		$("#cart_content").animate({ scrollTop: $('#cart_content').height()}, 1000);
	}
}

function validateEmail(email) {
    var re = /^(([^<>()\[\]\\.,;:\s@"]+(\.[^<>()\[\]\\.,;:\s@"]+)*)|(".+"))@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\])|(([a-zA-Z\-0-9]+\.)+[a-zA-Z]{2,}))$/;
    return re.test(String(email).toLowerCase());
}

function hide_checkout()
{
	$('#cart_content').slideUp();
}

function check_safe_country(country)
{
	var is_safe_country =  (country == 'australia') ||
						(country == 'austria') ||
						(country == 'belgium') ||
						(country == 'within belgium') ||
						(country == 'brésil') ||
						(country == 'canada') ||
						(country == 'china') ||
						(country == 'denmark') ||
						(country == 'finland') ||
						(country == 'france') ||
						(country == 'germany') ||
						(country == 'greece') ||
						(country == 'ireland') ||
						(country == 'isle of man') ||
						(country == 'italy') ||
						(country == 'japan') ||
						(country == 'luxembourg') ||
						(country == 'mexico') ||
						(country == 'the netherlands') ||
						(country == 'poland') ||
						(country == 'portugal') ||
						(country == 'russia') ||
						(country == 'slovakia') ||
						(country == 'spain') ||
						(country == 'sweden') ||
						(country == 'switzerland') ||
						(country == 'united kingdom') ||
						(country == 'united states of america') ||
						(country == 'usa') ||

						(country == 'australie') ||
						(country == 'autriche') ||
						(country == 'belgique') ||
						(country == 'within belgique') ||
						(country == 'brésil') ||
						(country == 'canada') ||
						(country == 'chine') ||
						(country == 'danemark') ||
						(country == 'finlande') ||
						(country == 'france') ||
						(country == 'allemagne') ||
						(country == 'grèce') ||
						(country == 'irlande') ||
						(country == 'île de man') ||
						(country == 'italie') ||
						(country == 'japon') ||
						(country == 'luxembourg') ||
						(country == 'méxique') ||
						(country == 'pays-bas') ||
						(country == 'pologne') ||
						(country == 'portugal') ||
						(country == 'russie') ||
						(country == 'slovaquie') ||
						(country == 'espagne') ||
						(country == 'suède') ||
						(country == 'suisse') ||
						(country == 'royaume uni') ||
						(country == "etats-unis d'amérique");

	return is_safe_country;
}

function finalize_checkout(code)
{
	if (!$('#terms_OK').is(':checked'))
	{
		alert("you must agree to the terms");
		return;
	}
	var fields = $("#checkout_info #checkout_table input:not([type='button']):not([type='checkbox'])")
	var params = new Object();
	for (i=0; i<fields.length; i++)
	{
		var f = $(fields[i]);
		var v = f.val();
		if (v.length <= 0 && f.attr('id') != 'coupon')
		{
			alert("you must fill out all fields");
			return;
		}

		var n = f.attr('name');
		params[n] = v;
	}


	if ($('#country').val() == 'world_USA' && $('#state').val().length <= 0)
	{
		alert("you must choose a state");
		return;
	}
	if ($('#country').val() == 'world_Canada' && $('#state').val().length <= 0)
	{
		alert("you must choose a state");
		return;
	}
	if (!validateEmail($('#email').val()))
	{
		alert("that does not look like a valid email address");
		return;
	}

	if ($('#email').val() != $('#email2').val())
	{
		alert("both email fields must be identical");
		return;
	}

	params['state'] = $('#state').val();
	params['country'] = $('#country').val();

	var has_ebooks = $("#cart_content li[media='ebook'").length > 0;

	var country = params['country'].toLowerCase().trim();
	country = country.slice(country.indexOf('_')+1);
	safe_country = check_safe_country(country);

	if (has_ebooks && !safe_country)
	{
		alert("We regret to inform you that our ebooks are currently unavailable in your region.");
		return;
	}

	var url = 'cart_cmd.php';
	if (code == 2 && safe_country) 		// disable this to hide ogone
		url += '?cmd=to_payment';		// disable this to hide ogone
	else								// disable this to hide ogone
		url += '?cmd=finalize';
	url += '&lang='+lang;

	$.post(url, params,function(res)
	{
		if (code == 2 && safe_country)				// disable this to hide ogone
		{											// disable this to hide ogone
			if (res.startsWith('error:'))			// disable this to hide ogone
				alert(res);							// disable this to hide ogone
			else									// disable this to hide ogone
				document.location = res;			// disable this to hide ogone
		}											// disable this to hide ogone
		else										// disable this to hide ogone
		{
			$('#cart_content').html('<div id=empty>'+res+'</div>');

			if (! res.startsWith('could not send mail to'))
			{
				setCookie('cart_id','');
				$('#cart_counter, .cart_counter').attr('empty','empty');

				setTimeout(hide_checkout, 10000);
			}
		}
	});
}