var ADFMediaURLs='';
var ADF_clickTag='https://adclick.g.doubleclick.net/aclk?sa=L&ai=C2NNBpyeqWd7cGcac3AGSoZPYDeLegsNEvtC4heUCwI23ARABIABgyZbuiISk7A-CARdjYS1wdWItMjgwNDg0MjU1ODUzNTQ4N8gBCakCzqwYyZVnhT7gAgCoAwGqBMUBT9DXBiMol0EOU0BF2vImERuNsO7eUiWrdwgYoTKyMq0vEm5qHAObFYA7Z6Alidu1IXv6JpT7hzIcd2-a7XBIDWR1Jw_xl5dJUVnFul5wqoe2TGSrZkZ9o3WLI2Esrh4u4uZL4x_wDN6UmvaeUxM0ZpJLzbXMEKBKWTMcPo8t9na9WwwTvluLFnO9wsnkvgPLEnLB0sADwu1NoYFrzs1jJHAE57J17FSg3Eu0MlATJYrxRpO20JKSrGMMOnx_l-Pp565-dKngBAGABoGX5ZXmgsqdT6AGIagHpr4b2AcA0ggFCIBhEAE&num=1&sig=AOD64_3K3-0L9n82PgNuhKg-cXlN5YJbrw&client=ca-pub-2804842558535487&adurl=https://a2.adformdsp.net/C/?bn=19283039;crtbwp=WaonpwAGbl4KNw5GAATQkpl1SpigbqJPwhtXIw;crtbdata=sFfkCKowzucrngvqza6jsBUHNxzSQ4SJLknREWYdXXbt1uJdDL4J7BJx70z9HFUwB0Zv1VhWI67vrQFlPXSJOlj2INtiaSYlSXVxVdKiDDiUVm7JMq1-L2KHDrEfiFPfADiL8vVqjGZTDjIiUFZ7xkoBCq6F7nwsfyEk3HmqvlQWzvdQF06ADkJqTcbpQlWb-Vo_se4tOEvKqGh57TWLNkHhIpkoas3H0;adfibeg=0;cdata=D_Hpy4PQlvjFG9dUyvuAmLtS8cHhAThSHRKdFX6ycVvVR8QwG8bd7LP3xxypVd0Tsdj4WkxyBXV3sUjBCrwIO85E07Ha4a3dsoSvFrQ9umrjPyxDj9yVCeFBboVeNKvP0;;CREFURL=https%3a%2f%2fwww.britannica.com';
var ADF_ClickEvent='';
var ADFtagID='2x';
var ADFafbanID='19283039';
var FlashObjectID='FlashID2x';
var ADFDomain='https://s2.adformdsp.net/Banners/';
var ADFDomainCDN='https://files.adform.net/Banners/';
var ADFVideoCDN='rtmp://s1yx966tga68s8.cloudfront.net/cfx/st/';
var ADFVideoCDNList=['rtmp://s1yx966tga68s8.cloudfront.net/cfx/st/'];
var ADFBanVer='2050';
var ADFBanVerBak='0';
var ADFbu=false;
var ADFerrTimeout = 15*24*60*60*1000;
var ADFTemplateVersion;
var ADFClientSiteId;
var ADFTemplateId;
var ADFGroupId;
var ADFbanID='20140245';
var ADFmembID='1588898';
var ADFcmpgnID='948076';
var ADFassetID='0';
var ADFbanPlacID='3031826';
var ADFUnloadID='7293542294888499224';
var ADFGeoData='889;22;840';
Adform=window.Adform||{};
Adform.cache="599";
Adform.locationInfo={Country: 'United states', Region: 'Massachusetts', City: 'Cambridge', Latitude: '42.3636', Longitude: '-71.08521'};

(function () {
try{
var i = Adform.ADFBannerUtils.getInstance()
i.addBannerAttribute("2x", "bn", 19283039);
i.addBannerAttribute("2x", "rotseqno", "1");
i.addBannerAttribute("2x", "cookieID", "2627142468177487807");
i.addBannerAttribute("2x", "smid", "21585390");
i.addBannerAttribute("2x", "unloadID", "7293542294888499224");
i.addBannerAttribute("2x", "height", 90);
i.addBannerAttribute("2x", "width", 728);
i.addBannerAttribute("2x", "pm", "948076");
i.addBannerAttribute("2x", "visibilityArea", [50]);
i.addBannerAttribute("2x", "visibilityTime", [1]);
i.addBannerAttribute("2x", "ms", "1588898");
i.addBannerAttribute("2x", "ban", "20140245");
i.addBannerAttribute("2x", "serverTime", 1504323512725);
i.addBannerAttribute("2x", "bannerVersion", "2050");
i.addBannerAttribute("2x", "csImpressionUrl", "https://a2.adformdsp.net/csimpr/?bn=19283039&csi=FOygJ4dZzuSStXLMbEJGpnOW7Z1a_3YdlKHs7r4nhiAX6YkzlESDVQ2");
i.addBannerAttribute("2x", "trackingSetupId", "934635");
i.addBannerAttribute("2x", "bnpl", "3031826");
i.addBannerAttribute("2x", "sendUnloadData", 1);
i.addBannerAttribute("2x", "unloadScriptVersion", 13);
i.addBannerAttribute("2x", "adNotice", 1);
i.addBannerAttribute("2x", "isDSPTag", true);
i.addBannerAttribute("2x", "isEventsEnabled", 1);
i.addBannerAttribute("2x", "rtbInventorySourceId", "1");
i.addBannerAttribute("2x", "rtbReqId", "59aa27a700066e5e0a370e46db04d092_1");
i.addBannerAttribute("2x", "rtbdata", "sFfkCKowzucrngvqza6jsBUHNxzSQ4SJLknREWYdXXbt1uJdDL4J7BJx70z9HFUwB0Zv1VhWI67vrQFlPXSJOlj2INtiaSYlSXVxVdKiDDiUVm7JMq1-L2KHDrEfiFPfADiL8vVqjGZTDjIiUFZ7xkoBCq6F7nwsfyEk3HmqvlQWzvdQF06ADkJqTcbpQlWb-Vo_se4tOEvKqGh57TWLNkHhIpkoas3H0");
i.addBannerAttribute("2x", "rtbwp", "WaonpwAGbl4KNw5GAATQkpl1SpigbqJPwhtXIw");
i.setBannerRegisteredStatus("2x");
}catch(e){}
})();



<!--
var ADFtagid1695733121 = (typeof(ADFafbanID)!="undefined") ? ADFafbanID : 0;
var ADFclickTagString1695733121 = (typeof(ADF_clickTag)!="undefined") ? escape(ADF_clickTag) : escape('https://a2.adformdsp.net/C/?bn='+ADFtagid1695733121);
var ADFclickTagParameters1695733121 = (typeof(ADF_clickTagPars)!="undefined") ? escape(ADF_clickTagPars) : '';
var ADFclickEventString = (typeof(ADF_ClickEvent) != "undefined") ? escape(ADF_ClickEvent) : escape('https://a2.adformdsp.net/C/?bn='+ADFtagid1695733121+';bsqno=1;li=1;cset=');
var FlashObjectID=(typeof(FlashObjectID)!="undefined") ? FlashObjectID : 'adftest';
var ADFDomain=(typeof(ADFDomain)!="undefined") ? ADFDomain : '';
var ADFDomainCDN=(typeof(ADFDomainCDN)!="undefined") ? ADFDomainCDN : '';
var ADFVideoCDN=(typeof(ADFVideoCDN)!="undefined") ? ADFVideoCDN : '';
var ADFClientSiteId=(typeof(ADFClientSiteId)!="undefined") ? ADFClientSiteId : '';
var ADFTemplateVersion=(typeof(ADFTemplateVersion)!="undefined") ? ADFTemplateVersion : '1695733121';
var ADFTemplateId=(typeof(ADFTemplateId)!="undefined") ? ADFTemplateId : '';
var ADFGroupId=(typeof(ADFGroupId)!="undefined") ? ADFGroupId : '';
var ADFGeoData=(typeof ADFGeoData != "undefined" || ADFGeoData != null) ? ADFGeoData : '0;0;0';
var ADFBanVer=(typeof(ADFBanVer)!="undefined") ? ADFBanVer : '1695733121';
var ADFBanVerBak=(typeof(ADFBanVerBak)!="undefined") ? ADFBanVerBak : '1695733121';
var ADFtagID=(typeof(ADFtagID)!="undefined") ? ADFtagID : '1x';
if (typeof(ADFbu)=="undefined") ADFbu=false;

var ADFcmpgnID = (typeof(ADFcmpgnID) != "undefined") ? ADFcmpgnID : '0';
var ADFmembID = (typeof(ADFmembID) != "undefined") ? ADFmembID : '0';
var ADFbanID = (typeof(ADFbanID) != "undefined") ? ADFbanID : '0';
var ADFbanPlacID = (typeof(ADFbanPlacID) != "undefined") ? ADFbanPlacID : '0';
var ADFUnloadID = (typeof(ADFUnloadID) != "undefined") ? ADFUnloadID : '0';


var ADFclickTagVariables1695733121 = 'clickTAG='+ADFclickTagString1695733121+';C=1'+ADFclickTagParameters1695733121+'&clickTAG2='+ADFclickTagString1695733121+';C=2'+ADFclickTagParameters1695733121+'&clickTAG3='+ADFclickTagString1695733121+';C=3'+ADFclickTagParameters1695733121+'';
if (ADFMediaURLs) ADFclickTagVariables1695733121 = ADFMediaURLs;



if(typeof Adform == "undefined") {var Adform = {};};
Adform.BannerData                    = {};
Adform.Data                          = Adform.BannerData;
Adform.RMBData                       = Adform.BannerData;
Adform.RMBData.type                  = 'standard';
Adform.RMBData.subtype               = 'rmb';
Adform.BannerData.timestamp          = '201708242306203419'; // std @timestamp@ rev. @version@
Adform.BannerData.ADFFlash           =  ADFDomain +'Elements/Files/145608/2267516/2267516.js?ADFassetID=2267516&bv='+ADFBanVer;

Adform.BannerData.width              = "728";
Adform.BannerData.height             = "90";
Adform.BannerData.ADFid              = ADFtagID;
Adform.BannerData.ADFban             = (typeof(ADFafbanID)!="undefined") ? ADFafbanID : 0;
Adform.BannerData.wmode              = "opaque";
Adform.RMBData.landingPageTarget     = "_blank";
Adform.BannerData.quality            = "Autohigh";
Adform.BannerData.bannerAlign        = "";
Adform.RMBData.userParams            = {"settingsXML":"http://www.adform.com/Banners/Html/20140245/settings.xml?bv=214913694"};
Adform.BannerData.clicktags          = 'cid='+ADFClientSiteId+'&geo='+ADFGeoData+'&gid='+ADFGroupId+'&tv='+ADFTemplateVersion+'&tid='+ADFTemplateId+'&domain='+ ADFDomain +'&bv='+ADFBanVer+'&ADFid='+ADFtagID+'&'+ADFclickTagVariables1695733121+'';
Adform.BannerData.clicktags         += '&ADFcmpgnID='+ADFcmpgnID+'&ADFmembID='+ADFmembID+'&ADFbanID='+ADFbanID+'&ADFbanPlacID='+ADFbanPlacID+'&unloadID='+ADFUnloadID;
Adform.BannerData.clicktags         += "&bn="+ADFtagid1695733121;
Adform.BannerData.clicktags         += "&wmode=opaque";
Adform.BannerData.clicktags         += "&evtBaseLink="+ADFclickEventString;

Adform.BannerData.clicktags         += "&settingsXML=" +  ADFDomain + ADFbanID  + "/settings.xml?bv="+ADFBanVer;
Adform.BannerData.clicktags         += "&ADFDomain=" + ( ADFDomain ).replace(/\/$/, "");




Adform.BannerData.videoSources = [{"id":1,"file":"Elements/Files/145608/2267474.jpg","external":"0","isStreaming":false},{"id":2,"file":"Elements/Files/145608/2267473.jpg","external":"0","isStreaming":false},{"id":3,"file":"Elements/Files/145608/2267475.jpg","external":"0","isStreaming":false}];

Adform.RMBData.css =  ADFDomain  + "scripts/assets/css/Adform.RMB.css?bv="+ADFBanVer;









Adform.BannerList = Adform.BannerList || [];
Adform.BannerList.push(Adform.BannerData);

if (!Adform.RMB || !Adform.RMB.AdConstructor) {
	// Load constructor script
	document.write('<scr' + 'ipt type="text/javascript" src="'+ ADFDomain +'scripts/rmb/Adform.RMB.js?bv='+ Adform.cache +'"></scr' + 'ipt>');
} else {
	// Run loaded constructor
	Adform.RMB.AdConstructor.build();
}
//-->