templates/common_scripts.j2

<script language="JavaScript">
        function toggleClassByID(pkg) {
            var element = document.getElementById(pkg);
            //var button = document.getElementById(pkg+"_button");

            if( element.className && element.className.indexOf("in") > -1 ) {
                element.classList.remove("in");
                //button.innerHTML = "&uarr;"
            }
            else {
                element.classList.add("in");
                //button.innerHTML = "&darr;"
            }
        }
    </script>
    <script language="JavaScript">
        function init() {
            // Declare all variables
            var i, content, items;

            // Get all elements with class="barcontent" and hide them
            content = document.getElementsByClassName("barcontent");
            for (i = 1; i < content.length; i++) {
                content[i].style.display = "none";
            }
            content[0].style.display = "block";

            // Get all elements with class="bar-item" and remove the class "active"
            items = document.getElementsByClassName("bar-item");
            for (i = 1; i < items.length; i++) {
                items[i].className = items[i].className.replace(" active", "");
            }
            items[0].className += " active";

        }
        function openBar(evt, barName) {
            // Declare all variables
            var i, barcontent, baritems;

            // Get all elements with class="barcontent" and hide them
            barcontent = document.getElementsByClassName("barcontent");
            for (i = 0; i < barcontent.length; i++) {
                barcontent[i].style.display = "none";
            }

            // Get all elements with class="bar-item" and remove the class "active"
            baritems = document.getElementsByClassName("bar-item");
            for (i = 0; i < baritems.length; i++) {
                baritems[i].className = baritems[i].className.replace(" active", "");
            }

            // Show the current tab, and add an "active" class to the link that opened the tab
            document.getElementById(barName).style.display = "block";
            evt.currentTarget.className += " active";
        }
    </script>