// Java Document var oldSsb; function MarkMe(menuName){ if (menuName == "clean") { oldSsb.style.display = 'none'; oldSsb=undefined; } else { //Side Submenu newSsb = document.getElementById("ssm"+ menuName); if (oldSsb != undefined) { oldSsb.style.display = 'none'; } if (newSsb != undefined) { newSsb.style.display = 'block'; } oldSsb = newSsb; } }