function none()
        {
        }

        function switchDisplays(item)
        {
            elemente = document.getElementsByTagName("div");
            for (i = 0; i < elemente.length; i++)
            {
                if (item == elemente[i].name)
                {
                    if ("none" == elemente[i].style.display)
                    {
                        elemente[i].style.display = "block";
                        document.getElementById(item + '_extender').innerText = '-';
                    }
                    else
                    {
                        elemente[i].style.display = "none";
                        document.getElementById(item + '_extender').innerText = '+';
                    }
                }
            }
            //(document.getElementsByName(item)[0].style.display);
            /*
            return true;
            if (document.getElementById(item + '_hidden').style.display == 'none') {
                document.getElementById(item + '_hidden').style.display = 'block';
            } else {
                document.getElementById(item + '_hidden').style.display = 'none';
                document.getElementById(item + '_extender').innerText = '+';
            }
            */
        }

        function switchDisplay(item)
        {
            if (document.getElementById(item + '_hidden').style.display == 'none') {
                document.getElementById(item + '_hidden').style.display = 'block';
                document.getElementById(item + '_extender').innerText = '-';
            } else {
                document.getElementById(item + '_hidden').style.display = 'none';
                document.getElementById(item + '_extender').innerText = '+';
            }
        }