<div id ="header-wrap">
	<nav class="navbar navbar-default">

		<div id="logo">
			<?php if (function_exists( 'has_custom_logo' ) && has_custom_logo()) {
				custom_logo();
			} else { ?>
				<a href="<?php echo esc_url( home_url( '/' ) ) ?>"><?php esc_attr(bloginfo( 'name' )); ?></a>
			<?php }?>
			<?php if ($theme_options['enable_logo_tagline'] == '1' ) { ?>
				<h5 class="site-description"><?php echo esc_attr(bloginfo('description')); ?></h5>
			<?php } ?>
		</div>
		<div class="navbar-header">
			<button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#navbar" aria-expanded="false" aria-controls="navbar">
			<span class="sr-only"><?php _e('Toggle navigation','modality');?></span>
			<span class="icon-bar"></span>
			<span class="icon-bar"></span>
			<span class="icon-bar"></span>
			</button>
		</div><!--navbar-header-->
		<div id="navbar" class="navbar-collapse collapse">
			<?php

				if (has_nav_menu('main_navigation')) {

					$default_menu = array(
						'theme_location'  => 'main_navigation',
						'menu'       => 'main_navigation',
						'depth'      => 0,
						'container'  => false,
						'menu_class' => 'nav navbar-nav',
						'fallback_cb'       => 'wp_page_menu',
						'walker'     => new wp_bootstrap_navwalker(),
					);

				} else {

					$default_menu = array(
						'theme_location'  => 'main_navigation',
						'menu'       => 'main_navigation',
						'depth'      => 0,
						'container'  => false,
						'menu_class' => 'nav-bar',
						'fallback_cb'       => 'wp_page_menu',
					);

				}

				wp_nav_menu( $default_menu );

			?>

		</div><!--/.nav-collapse -->

	</nav>
</div><!--header-wrap-->