var popup_window;
function openWindow(page,width,height,scroll) {
	if (popup_window) { popup_window.close() }
	popup_window = window.open(page, "popup", "width="+width+",height="+height+scroll);
	if (popup_window) { popup_window.focus() }
	return false;
}
function email_link(recipient) {
  openWindow("/email.php?sendto="+recipient,420,480,'');
}