function doOpenWin() {
	window.open('http://www.emailgenerator.nl/nieuwsbrief/index.php?page=member_subscribe&uid=288','mainWin','status=yes,scrollbars=yes,resizable=yes,width=450,height=280');
}

function ShowLink(text) {
	if(text == null)
		text = 'Nieuwsbrief aanmelden';
	document.writeln('<a href="javascript:doOpenWin()">' + text + '</a>');
}