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 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";	
    }
}