function kennisTest(url) {
	window.open(url,'kennistest','toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=no,resizable=no,width=450,height=350');
}

function drugsBrain() {
	window.open('http://www.jellinek.nl/brain/index.html','brain','toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=no,resizable=no,width=625,height=525');
}