')
.appendTo('body');
}
$('#lightbox').empty().append(content);
$('#lightbox, #lightbox-shadow').fadeIn();
}
function closeLightbox() {
$('#lightbox, #lightbox-shadow').fadeOut(function() {
$('lightbox').empty();
});
return false;
}

// Wrapper for all the places that call GB_showImage
// in their onclick attribute
function GB_showImage(title, image) {
lightbox('');
$('#lightbox, #lightbox-shadow').on('click', closeLightbox);
return false;
}

//drop down menu in top nav


$(function () {
$('nav#sitelinks li ul').hide().removeClass('fallback');
$('nav#sitelinks li').hover(function () {
$('ul', this).stop().slideToggle(200);
});
});


// Save to MyNAP handler
$('a.saveit').one('click', function(e) {
e.preventDefault();
$.getJSON('/napsave.php', {
type: 'shelf',
r: $(this).data('recordid')
}, function(response) {
$(e.target)
.toggleClass('saveit saveit_active')
.attr('href', '/mynap.php')
.text('Added to Bookshelf');
});
});

// Back To Top control
$(function() {
var offset = 220;
var duration = 500;
$(window).scroll(function() {
if ($(this).scrollTop() > offset) {
$('.back-to-top').fadeIn(duration);
} else {
$('.back-to-top').fadeOut(duration);
}
});
$('.back-to-top').on('click', function(event) {
event.preventDefault();
$('html, body').animate({scrollTop: 0}, duration);
return false;
});
});





$('#related-books-rows').on('click', '.book-row a', function(e) {
var rowTitle = $(this).closest('.book-row').data('title');
var position = ($(this).closest('.book-tile').index()).toString();
var element = $(this).data('alias');
var title = $(this).data('title');
dlPush(rowTitle, position, element, title);
});

function dlPush(rowTitle, position, element, title, event){
window.dataLayer = window.dataLayer || ;dataLayer.push({
'rowTitle' : rowTitle,
'position' : position,
'element' : element,
'title' : title,
'rowpage' : 'catalog',
'event' : 'rowSelect',
});
}
function dlEvent(element, title, event){
window.dataLayer = window.dataLayer || ;dataLayer.push({
'element' : element,
'title' : title,
'rowpage' : 'catalog',
'event' : 'cover',
});
}

$('.merchpurch select').on('change', function() {
$(this).siblings('button').prop('disabled', $(this).val() == '');
});

$('#related-books-rows').load('rows', function() {
$('.truncate').dotdotdot({
watch: true,
lastCharacter: {
remove: [' ', ',', ';', '.', '!', '?']
}
});
});

if ( $('.book-description').children().length > 1 ) {
$('.book-description').children(':gt(0)').hide();
$('.book-description').children(':first').after('[read full description]');
$('.book-description a.readmore').on('click', function(e) {
e.preventDefault();
$('.book-description').children(':gt(0)').fadeIn();
$('.book-description a.readmore').remove();
});
}

$('.status-popover, [data-content]').popover({
trigger: 'hover',
container: 'body'
});



$('.nav-tabs [href="#stats"]').one('shown.bs.tab', function(e) {
$('#stats').load('/catalog/4991/stats');
});

$('.mobile-tab[data-target="#stats"]').one('click', function(e) {
$('#stats').load('/catalog/4991/stats');
});

function openDefaultTab() {
var hash = window.location.hash;
var tabs = $('.nav-tabs>li>a').map(function() { return $(this).attr('href'); }).get();
var index = tabs.indexOf(hash);
if (index > 0) {
$('.nav-tabs>li>a').eq(index).tab('show');
}
}
openDefaultTab();

$('.nav-tabs [data-toggle=tab]').one('shown.bs.tab', function() {
var $target = $($(this).attr('href'));
$target.find('iframe').attr('src', function(i, val) { return val; });
});

$('.nav-tabs [data-toggle=tab]').on('show.bs.tab', function(e) {
var target = $(this).attr('href');
$('.mobile-tab[data-target="' + target + '"]').toggleClass('active');
});

$('.reslink').click(function() {
$('.nav-tabs a[href="#resources"]').tab('show') // Select tab by name
});

$('.mobile-tab').on('click', function(e) {
e.preventDefault();
var target = $(this).data('target');
$(target).css({'opacity': 1}).toggle();
$(this).toggleClass('active');
});

// Save to MyNAP handler
$('a.action-add').one('click', function(e) {
e.preventDefault();
$.getJSON('/napsave.php', {
type: 'shelf',
r: $(this).data('recordid')
}, function(response) {
$(e.target)
.toggleClass('action-add action-add-active')
.attr('href', '/mynap')
.text('Added to Bookshelf');
});
});

// $('.cover-block').on('click', function() {
// trackEvent('catalog', 'cover', 'show');
// });


/**
* Allow the user to customize the width and height of the widget,
* but constrain the values to sizes that don't look bad.
*/
Math.clamp = function(value, min, max) {
return Math.max(min, Math.min(max, value));
};
updateEmbedCode = function(width, height) {
width = width || 250;
height = height || 350;
var html = '';
$('#embed-modal textarea.embed-code').val(html);
$('#embed-modal .embed-preview iframe').width(width).height(height);
$('#embed-modal .modal-dialog').width(width + 40);
return true;
};
updateEmbedCode();
$('#embed-modal input').on('change keyup', function() {
var w = Math.clamp($('#embed-modal input.embed-width-input').val(), 250, 1000),
h = Math.clamp($('#embed-modal input.embed-height-input').val(), 350, 500);
updateEmbedCode(w, h);
});

$('#embed-modal textarea.embed-code').on('click focus', function() {
$(this).select();
});

dataLayer.push({'addevent': true});
addthis.layers({
'theme' : 'transparent',
'share' : {
'position' : 'left',
'numPreferredServices' : 4,
'services': 'facebook,twitter,linkedin,email,more'
},
'responsive' : {
'maxWidth': '1210px'
}
});

var addthis_share = {
url: 'nap.edu/4991',
title: 'Fetal Alcohol Syndrome: Diagnosis, Epidemiology, Prevention, and Treatment',

templates: {
twitter: '{{title}} | {{url}} via @theNASEM'
}

};