---
layout: none
permalink: assets/js/main.js
---

/**
 * AnchorJS
 */
$(document).ready(function () {
    anchors.options = {
        placement: 'left'
    };
    anchors.add('h2:not(.no-anchor)');
})

/**
 * Function to open external links in separate tab
 */
$(document).ready(function external_new_window() {
    for (var c = document.getElementsByTagName("a"), a = 0; a < c.length; a++) {
        var b = c[a];
        if (b.getAttribute("href") && b.hostname !== location.hostname) {
            b.target = "_blank";
            b.rel = "noopener";
        }
    }
});

/**
 * Settings for side navigation
 */
$(document).ready(function () {
    // Initialize navgoco with default options
    $("#side-nav>ul").navgoco({
        caretHtml: '',
        accordion: true,
        openClass: 'active', // open
        save: false, // leave false or nav highlighting doesn't work right
        cookie: {
            name: 'navgoco',
            expires: false,
            path: '/'
        },
        slide: {
            duration: 400,
            easing: 'swing'
        }
    });
});

/**
 * Activate tooltips
 */

$(function () {
    var tooltipTriggerList = [].slice.call(document.querySelectorAll('[data-bs-toggle="tooltip"]'))
    var tooltipList = tooltipTriggerList.map(function (tooltipTriggerEl) {
        return new bootstrap.Tooltip(tooltipTriggerEl, {
            animation: false
        })
    })
})

/**
 * Activate popovers
 */

$(function () {
    var popoverTriggerList = [].slice.call(document.querySelectorAll('[data-bs-toggle="popover"]'))
    var popoverList = popoverTriggerList.map(function (popoverTriggerEl) {
        return new bootstrap.Popover(popoverTriggerEl)
    })
})

/**
 * Back to top button
 */

 var toggleHeight = $(window).outerHeight() / 2;

 $(window).scroll(function () {
   if ($(window).scrollTop() > toggleHeight) {
     //Adds active class to make button visible
     $("#back-to-top").addClass("visible");
 
   } else {
     //Removes active class to make button visible
     $("#back-to-top").removeClass("visible");
   }
 });
 
 //Scrolls the user to the top of the page again
 function topFunction() {
    document.body.scrollTop = 0; // For Safari
    document.documentElement.scrollTop = 0; // For Chrome, Firefox, IE and Opera
  }


/**
 * Making relevant events visible
 */
function nowToDateString() {
    return new Date().toISOString().substring(0, 10);
};

function show_upcoming_events() {
    var dstr = nowToDateString();
    var events_block = $(document.getElementsByClassName("upcoming_events"));
    var elements = $('li.upcoming_event').filter(function () {
        return $(this).data('start') >= dstr;
    });
    if ($(elements).length > 0) {
        events_block.show()
    }
    elements.show();
};

function show_past_events() {
    var dstr = nowToDateString();
    var events_block = $(document.getElementsByClassName("past_events"));
    var elements = $('li.past_event').filter(function () {
        return $(this).data('start') < dstr;
    });
    if ($(elements).length > 0) {
        events_block.show()
    }
    elements.show();
};