var contactWindowUp = 0;

function destroyContactWin()
{
  if ( 1 == contactWindowUp )
    contactWindow.close();
}

function showContactWin()
{
  destroyContactWin();

  contactWindow = window.open( '', 'contactInfo',
	'width=400,height=270,menubar=no,toolbar=no,status=no,directories=no,scrollbars=auto' );
  contactWindowUp = 1;
  contactWindow.location = "contact.htm";
}