function showWarning() {
    if (document.getElementById('bodycontent') != null)
    {
	    document.getElementById('bodycontent').style.display = 'none';
	}
	if (document.getElementById('warningmessage') != null)
    {
	    document.getElementById('warningmessage').style.display = '';
	}
}

function showBodyContent() {
    if (document.getElementById('bodycontent') != null)
    {
        document.getElementById('bodycontent').style.display = '';
    }
    if (document.getElementById('warningmessage') != null)
    {
	    document.getElementById('warningmessage').style.display = 'none';
	}
}