function ClosePopupWindows()
{
    if (document.getElementById && document.getElementById("popup"))
    {
        document.getElementById("popup").style.visibility = "hidden";
    }
}

function ShowPopupWindows()
{
    if (document.getElementById && document.getElementById("popup"))
    {
        document.getElementById("popup").style.visibility = "visible";
    }
}

function showHide(id)
{
  el=document.getElementById(id).style;
  el.display=(el.display == 'block')?'none':'block';
}

function showAll()
{
  for (var i=1;i<12;i++)
  {
    el=document.getElementById('tab'+i).style;
    el.display = 'block';
  }
}

function hideAll()
{
  for (var i=1;i<12;i++)
  {
    el=document.getElementById('tab'+i).style;
    el.display = 'none';
  }
}

function ShowProgressBar()
{
    if (document.getElementById && document.getElementById("ProgressBar"))
    {
        document.getElementById("ProgressBar").style.visibility = "visible";
        window.setTimeout("document.images['IMG_ProgressBar'].src = document.images['IMG_ProgressBar'].src;",100);
    }
}

function HideProgressBar()
{
    if (document.getElementById && document.getElementById("ProgressBar"))
    {
        document.getElementById("ProgressBar").style.visibility = "hidden";
        window.setTimeout("document.images['IMG_ProgressBar'].src = document.images['IMG_ProgressBar'].src;",100);
    }
}