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Ombi/js/cbpAnimatedHeader.js

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875 B

/**
* 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();
})();