function show(object) {
    if (document.getElementById && document.getElementById(object) != null) {
         document.getElementById(object).style.visibility='visible';
         document.getElementById(object).style.display='block';
    }
    else if (document.layers && document.layers[object] != null)
        document.layers[object].visibility = 'visible';
    else if (document.all) {
        document.all[object].style.zIndex = 100;
        document.all[object].style.visibility = 'visible';
    }
}
function hide(object) {
    if (document.getElementById && document.getElementById(object) != null) {
         document.getElementById(object).style.visibility='hidden';
         document.getElementById(object).style.display='none';
    }
    else if (document.layers && document.layers[object] != null)
        document.layers[object].visibility = 'hidden';
    else if (document.all)
         document.all[object].style.visibility = 'hidden';
}
function openWin(aUrl)
{
 aWinParams = "toolbar=no,location=no,directories=no,status=no,"
 aWinParams += "scrollbars=yes,resizable=yes,copyhistory=no,width=400,height=300"
 aPopup = window.open(aUrl, 'Popup', aWinParams)
}