function HidePopupContainer() {
	document.getElementById('PopupContainer').style.visibility = 'hidden';
	document.getElementById('PopupContainerShadow').style.visibility = 'hidden';
}

function ShowPopupMessage() {	
	document.getElementById('PopupContainer').style.visibility = 'visible';	
	document.getElementById('PopupContainerShadow').style.visibility = 'visible';	
	document.getElementById('PopupCloseButton').focus();
}