function getChapterHash($chapter) {
    var $link = $chapter.children('a'),
        hash = $link.attr('href').split('#')[1];

    if (hash) hash = '#'+hash;
    return (!!hash)? hash : '';
}
function getChapterHash($chapter) {
    var $link = $chapter.children('a'),
        hash = $link.attr('href').split('#')[1];

    if (hash) hash = '#'+hash;
    return (!!hash)? hash : '';
}
function getChapterHash ( $chapter ) { var $link = $chapter . children ( 'a' ) , hash = $link . attr ( 'href' ) . split ( '#' ) [ 1 ] ; if ( hash ) hash = '#' + hash ; return ( ! ! hash ) ? hash : '' ; }
Return the hash of link for a chapter
Return the hash of link for a chapter