动网论坛7.1 SP1最新经典修改

修改方法：
1、打开in/main.js文件，在文件最后其中增加如下几个函数：
//Opens a shim, if no shim exists for the menu, one is created
function openShim(menu,menuItem)
{
    if (menu==null) return;
    var shim = getShim(menu);
    if (shim==null) shim = createMenuShim(menu,getShimId(menu));
    
    //Change menu zIndex so shim can work with it
    menu.style.zIndex = 100;
    
    var width = (menu.offsetWidth == 0 ? menuItem.renderedWidth : menu.offsetWidth);
    var height;
    
    if (menu.offsetHeight == 0)
    {
        var menus = getMenuItemCount(menu);
        height = menuItem.renderedHeight * menus;
    }
    else
    {
        var height = menu.offsetHeight;
    }
    
    shim.style.width = width;
    shim.style.height = height;
    shim.style.top = menu.style.top;
    shim.style.left = menu.style.left;
    shim.style.zIndex = menu.style.zIndex - 1;
    shim.style.position = "absolute";
    shim.style.display = "block";
}

//Closes the shim associated with the menu
function closeShim(menu)
{
    if (menu==null) return;
    var shim = getShim(menu);