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- /**
- * cbpAnimatedHeader.js v1.0.0
- * http://www.codrops.com
- *
- * Licensed under the MIT license.
- * http://www.opensource.org/licenses/mit-license.php
- *
- * Copyright 2013, Codrops
- * http://www.codrops.com
- */
- var cbpAnimatedHeader = (function() {
- var docElem = document.documentElement,
- header = document.querySelector( '.navbar-default' ),
- didScroll = false,
- changeHeaderOn = 300;
- function init() {
- window.addEventListener( 'scroll', function( event ) {
- if( !didScroll ) {
- didScroll = true;
- setTimeout( scrollPage, 250 );
- }
- }, false );
- }
- function scrollPage() {
- var sy = scrollY();
- if ( sy >= changeHeaderOn ) {
- classie.add( header, 'navbar-shrink' );
- }
- else {
- classie.remove( header, 'navbar-shrink' );
- }
- didScroll = false;
- }
- function scrollY() {
- return window.pageYOffset || docElem.scrollTop;
- }
- init();
- })();
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