ref="";
if (document.referrer&&document.referrer!="") {
	ref =(parent==self?document.referrer:top.document.referrer);
}
document.write('<iframe src="http://ban.berg-media.com/bouw/bouwrechts.php?ref=' + ref + '" width="234" height="60" frameborder="1" border="0" marginwidth="0" marginheight="0" scrolling="no"></iframe>');
function getQueryVariable(variable,uri) { 
var query = uri; 
var vars = query.split("&");
	for (var i=0;i<vars.length;i++) {
		var pair = vars[i].split("=");
		if (pair[0] == variable) {
			return pair[1];
		}
	}
}