// JavaScript Document
function changeTab1(index)
        {
            for (var i=1;i<=3;i++)
            {
                document.getElementById ("li1_"+i).className ="normal";
                document.getElementById ("li1_"+index).className ="selected";
                document.getElementById ("div1"+i).style.display  ="none";
            }
            document.getElementById ("div1"+index).style.display  ="block";
       }
function changeTab2(index)
        {
            for (var i=1;i<=3;i++)
            {
                document.getElementById ("li2_"+i).className ="normal";
                document.getElementById ("li2_"+index).className ="selected";
                document.getElementById ("div2"+i).style.display  ="none";
            }
            document.getElementById ("div2"+index).style.display  ="block";
       }
function changeTab(index)
        {
            for (var i=1;i<=3;i++)
            {
                document.getElementById ("li_"+i).className ="normal";
                document.getElementById ("li_"+index).className ="selected";
                document.getElementById ("div"+i).style.display  ="none";
            }
            document.getElementById ("div"+index).style.display  ="block";
       }
function displaySubMenu(li) {
            var subMenu = li.getElementsByTagName("ul")[0];
            subMenu.style.display = "block";
        }
function hideSubMenu(li) {
            var subMenu = li.getElementsByTagName("ul")[0];
            subMenu.style.display = "none";
        }