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/*jshint browser: true, devel: true, debug: true */

(function( window, document, undefined ) {

var activePage, position, sidebar,

narrowScreen = ( window.getComputedStyle( document.body, ':after' ).getPropertyValue( 'content' ) === 'narrow' ) ? true : false

// if it's not the index page and not a narrow screen

if ( window.location.pathname.length && !narrowScreen ) {

// get the sidebar

sidebar = document.getElementById( 'sidebar' )

// query the dom for the active page

activePage = document.getElementsByClassName( 'page-active' )

// if an active page was found

if ( activePage.length ) {

// get the offset position and give a padding of 80px

position = activePage[0].offsetTop - 80

// set the scroll position of the sidebar to the new position

sidebar.scrollTop = position

}

}

})( window, document )