function popup() {
	var today = new Date();
	var date_start = new Date(2009,11,28,0,0);
	var date_end = new Date(2010,0,2,0,0);
	if ((today>date_start) && (today<date_end)) {
		window.open('custom/kerstpopup/2009.html','Originals','width=200, height=360, status=0, scrollbars=0, menu=0, toolbar=0, resizable=0, screenX=100. screenY=200, left=100, top=100'); 
	}               
}