text: /**
   * navigation.js
   *
   * Handles toggling the navigation menu for small screens and enables tab
   * support for dropdown menus.
   */
  ( function() {
  	var container, button, menu, links, subMenus;
  
  	container = document.getElementById( 'site-navigation' );
  	if ( ! container ) {
  		return;
  	}
  
  	button = container.getElementsByTagName( 'button' )[0];
  	if ( 'undefined' === typeof button ) {
  		return;
  	}
  
  	menu = container.getElementsByTagName( 'ul' )[0];
  
  	// Hide menu toggle button if menu is empty and return early.
  	if ( 'undefined' === typeof menu ) {
  		button.style.display = 'none';
  		return;
  	}
  
  	menu.setAttribute( 'aria-expanded', 'false' );
  	if ( -1 === menu.className.indexOf( 'nav-menu' ) ) {
  		menu.className += ' nav-menu';
  	}
  
  	button.onclick = function() {
  		if ( -1 !== container.className.indexOf( 'toggled' ) ) {
  			container.className = container.className.replace( ' toggled', '' );
  			button.setAttribute( 'aria-expanded', 'false' );
  			menu.setAttribute( 'aria-expanded', 'false' );
  		} else {
  			container.className += ' toggled';
  			button.setAttribute( 'aria-expanded', 'true' );
  			menu.setAttribute( 'aria-expanded', 'true' );
  		}
  	};
  
  	// Get all the link elements within the menu.
  	links    = menu.getElementsByTagName( 'a' );
  	subMenus = menu.getElementsByTagName( 'ul' );
  
  	// Set menu items with submenus to aria-haspopup="true".
  	for ( var i = 0, len = subMenus.length; i < len; i++ ) {
  		subMenus[i].parentNode.setAttribute( 'aria-haspopup', 'true' );
  	}
  
  	// Each time a menu link is focused or blurred, toggle focus.
  	for ( i = 0, len = links.length; i < len; i++ ) {
  		links[i].addEventListener( 'focus', toggleFocus, true );
  		links[i].addEventListener( 'blur', toggleFocus, true );
  	}
  
  	/**
  	 * Sets or removes .focus class on an element.
  	 */
  	function toggleFocus() {
  		var self = this;
  
  		// Move up through the ancestors of the current link until we hit .nav-menu.
  		while ( -1 === self.className.indexOf( 'nav-menu' ) ) {
  
  			// On li elements toggle the class .focus.
  			if ( 'li' === self.tagName.toLowerCase() ) {
  				if ( -1 !== self.className.indexOf( 'focus' ) ) {
  					self.className = self.className.replace( ' focus', '' );
  				} else {
  					self.className += ' focus';
  				}
  			}
  
  			self = self.parentElement;
  		}
  	}
  	$(window)
  	    .scroll(function(event) {
  	        var yOffset = window.pageYOffset;
  	        var breakpoint = 50;
  	        if (yOffset > breakpoint) {
  	            $(".main-navigation").addClass('active');
  	            $(".sub-menu").addClass('active2');
  	            $(".sub-menu li").addClass('active4');
  	            $(".nav-toggle").addClass('active3');
  	            $(".pna_logo").addClass('active5');
  	        } else {
  	            $(".main-navigation").removeClass('active');
  	            $(".sub-menu").removeClass('active2');
  	            $(".sub-menu li").removeClass('active4');
  	            $(".nav-toggle").removeClass('active3');
  	            $(".pna_logo").removeClass('active5');
  	        }
      });
  	$(".nav-toggle").click(function(){
  		$(".main-navigation").toggleClass("is-active");
  		$(".pna_logo").toggleClass("is-active2");
  	});
  } )();
  