function openwindow(popurl,name,size) {
	nieuwVenster=window.open(popurl,name,size,'menubar=no,scrollbars=no,toolbar=no,location=no,resizable=yes,directories=no');
	nieuwVenster.focus();
	return false;
}

function externalLinks() {
    if (!document.getElementsByTagName) return;
        var anchors = document.getElementsByTagName("a");
        for (var i=0; i<anchors.length; i++) {
        var anchor = anchors[i];
        if (anchor.getAttribute("href") &&
        anchor.getAttribute("rel") == "external")
        anchor.target = "_blank";
    }
}