function displaySubMenu(num) {
     var tabs = document.getElementById('Cat_Menu').getElementsByTagName('li');
     var submenus = document.getElementById('Cat_Submenu').getElementsByTagName('ul');
     var bcolor = (num+1) * 176;

     //Init Tabs
     for (i=0; i!=tabs.length; i++) {
          tabs[i].style.backgroundPosition = "left -"+(bcolor+88)+"px";
     }
     tabs[4].style.backgroundPosition = "left -"+(bcolor/2)+"px";
     tabs[num].style.backgroundPosition = "left -"+bcolor+"px";
     //Init SubMenu
     for (i=0; i!=submenus.length; i++) {
          submenus[i].parentNode.style.display = "none";
     }
     submenus[num].parentNode.style.display = "block";
}

function displayThumb(elem) {
     var lis = elem.parentNode.getElementsByTagName('li');
     // Hide layer for all Item
     for (i=0; i!=lis.length; i++) {
          if (lis[i].getElementsByTagName('span').length >0 ) {
               lis[i].getElementsByTagName('span')[0].style.display = "none";
          }
     }
     elem.getElementsByTagName('span')[0].style.display = "block";
}

function displayHideContent(elem,id) {
     if( elem.style.backgroundPosition == "left top") {
          elem.style.backgroundPosition = "left bottom";
          Effect.BlindDown(id);
          areaVar1 = true;
     } else {
          elem.style.backgroundPosition = "left top";
          Effect.BlindUp(id);
          areaVar1 = false;
     }
}