// JavaScript Document
function Show(n)
{
    var i;
    for (i=1; ; i++)
    {
        var id = "xx_" + i.toString();
        var element = document.getElementById(id);
        if (!element) return;
        if (i == n)
          element.className = element.className == "vi" ? "hi" : "vi";
        else
          element.className = "hi";
    }
}
function Close(n)
{
    var i;
    for (i=1; ; i++)
    {
        var id = "xx_" + i.toString();
        var element = document.getElementById(id);
        if (!element) return;
        if (i == n)
          element.className = element.className == "hi" ? "vi" : "hi";
        else
                  element.className = "vi";
    }
}