function showAd(zoneId, serverName) {
	document.write('<scr' +'ipt type="text/javascript" src="' +returnAd(zoneId, serverName) +'"></scr' +'ipt>');
}

function returnAd(zoneId, serverName) {
	var m3_u = (location.protocol == 'https:' ? 'https://' +serverName +'/www/delivery/ajs.php' : 'http://' +serverName +'/www/delivery/ajs.php');
	var m3_r = Math.floor(Math.random() * 99999999999);
	var scriptSrc = '';

	if(!document.MAX_used) {
		document.MAX_used = ',';
	}

	// Build script-src
	scriptSrc = m3_u +'?zoneid=' +zoneId +'&cb=' +m3_r;
	if(document.MAX_used != ',') {
		scriptSrc += '&exclude=' +document.MAX_used;
	}
	scriptSrc += '&loc=' +escape(window.location);
	if(document.referrer) {
		scriptSrc += '&referer=' +escape(document.referrer);
	}
	if(document.context) {
		scriptSrc += '&context=' +escape(document.context);
	}
	if(document.mmm_fo) {
		scriptSrc += '&mmm_fo=1';
	}

	return scriptSrc;
}