| /** |
| * 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-fixed-top' ), |
| 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(); |
| |
| })(); |