if(typeof(AdServerR)=="undefined")AdServerR=parseInt(Math.random()*Math.pow(10,17));
document.write(
	'<script SRC="http://ads.softure.com/adsjs.aspx?net=boom&site=preferate&channel=educatie_invatamant/nochannel&adslot=right_sky'+
	'&rnd='+AdServerR+'&tz='+((new Date()).getTimezoneOffset()).toString()+'&__url='+escape(window.top.document.URL)+'&__ref='+escape(window.top.document.referrer)+'"><\/script>'
);