var popWin = null

function sureMessage(message)
{
	if (confirm(message))
		return true
	else
		return false
}

function openWin(url)
{
	{
		closeWin()
		popWin = window.open(url,'','height=400,width=630,menubar=no,titlebar=no,status=no,scrollbars=yes,left=10,top=10,resizable=1')
	}
}

function closeWin()
{
	if ((popWin != null) && (popWin.closed == false))
		popWin.close()
}