CINXE.COM

<!DOCTYPE html> <html class="" lang="en-GB"> <head><script type="text/javascript" src="/_static/js/bundle-playback.js?v=HxkREWBo" charset="utf-8"></script> <script type="text/javascript" src="/_static/js/wombat.js?v=txqj7nKC" charset="utf-8"></script> <script>window.RufflePlayer=window.RufflePlayer||{};window.RufflePlayer.config={"autoplay":"on","unmuteOverlay":"hidden"};</script> <script type="text/javascript" src="/_static/js/ruffle/ruffle.js"></script> <script type="text/javascript"> __wm.init("https://web.archive.org/web"); __wm.wombat("http://www.bbc.co.uk/contact","20180213224513","https://web.archive.org/","web","/_static/", "1518561913"); </script> <link rel="stylesheet" type="text/css" href="/_static/css/banner-styles.css?v=S1zqJCYt" /> <link rel="stylesheet" type="text/css" href="/_static/css/iconochive.css?v=3PDvdIFv" />   <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/> <meta name="description" content=""/> <meta name="keywords" content=""/> <title>Internal error</title> <meta name="viewport" content="width=device-width, initial-scale=1.0"/> <meta property="fb:admins" content="100004154058350"/>  <link rel="stylesheet" href="https://web.archive.org/web/20180213224513cs_/http://static.bbci.co.uk/frameworks/barlesque/3.21.31/orb/4/style/orb.min.css">   <link rel="stylesheet" type="text/css" href="https://web.archive.org/web/20180213224513cs_/http://static.bbci.co.uk/errorhandling/0.4.1/style/error/default.css"/>  <script class="js-require-lib" src="https://web.archive.org/web/20180213224513js_/http://static.bbci.co.uk/frameworks/requirejs/lib.js"></script> <script type="text/javascript"> bbcRequireMap = {"jquery-1":"https://web.archive.org/web/20180213224513/http://static.bbci.co.uk/frameworks/jquery/0.4.1/sharedmodules/jquery-1.7.2", "jquery-1.4":"https://web.archive.org/web/20180213224513/http://static.bbci.co.uk/frameworks/jquery/0.4.1/sharedmodules/jquery-1.4", "jquery-1.9":"https://web.archive.org/web/20180213224513/http://static.bbci.co.uk/frameworks/jquery/0.4.1/sharedmodules/jquery-1.9.1", "jquery-1.12":"https://web.archive.org/web/20180213224513/http://static.bbci.co.uk/frameworks/jquery/0.4.1/sharedmodules/jquery-1.12.0.min", "jquery-2.2":"https://web.archive.org/web/20180213224513/http://static.bbci.co.uk/frameworks/jquery/0.4.1/sharedmodules/jquery-2.2.0.min", "istats-1":"//web.archive.org/web/20180213224513/http://nav.files.bbci.co.uk/nav-analytics/0.1.0-43/js/istats-1", "swfobject-2":"https://web.archive.org/web/20180213224513/http://static.bbci.co.uk/frameworks/swfobject/0.1.10/sharedmodules/swfobject-2", "demi-1":"https://web.archive.org/web/20180213224513/http://static.bbci.co.uk/frameworks/demi/0.10.1/sharedmodules/demi-1", "gelui-1":"https://web.archive.org/web/20180213224513/http://static.bbci.co.uk/frameworks/gelui/0.9.13/sharedmodules/gelui-1", "cssp!gelui-1/overlay":"https://web.archive.org/web/20180213224513/http://static.bbci.co.uk/frameworks/gelui/0.9.13/sharedmodules/gelui-1/overlay.css", "relay-1":"https://web.archive.org/web/20180213224513/http://static.bbci.co.uk/frameworks/relay/0.2.6/sharedmodules/relay-1", "clock-1":"https://web.archive.org/web/20180213224513/http://static.bbci.co.uk/frameworks/clock/0.1.9/sharedmodules/clock-1", "canvas-clock-1":"https://web.archive.org/web/20180213224513/http://static.bbci.co.uk/frameworks/clock/0.1.9/sharedmodules/canvas-clock-1", "cssp!clock-1":"https://web.archive.org/web/20180213224513/http://static.bbci.co.uk/frameworks/clock/0.1.9/sharedmodules/clock-1.css", "jssignals-1":"https://web.archive.org/web/20180213224513/http://static.bbci.co.uk/frameworks/jssignals/0.3.6/modules/jssignals-1", "jcarousel-1":"https://web.archive.org/web/20180213224513/http://static.bbci.co.uk/frameworks/jcarousel/0.1.10/modules/jcarousel-1", "bump-3":"//web.archive.org/web/20180213224513/http://emp.bbci.co.uk/emp/bump-3/bump-3"}; require({ baseUrl: 'https://web.archive.org/web/20180213224513/http://static.bbci.co.uk/', paths: bbcRequireMap, waitSeconds: 30 }); </script> <script type="text/javascript">/*<![CDATA[*/ if (typeof bbccookies_flag === 'undefined') { bbccookies_flag = 'ON'; } showCTA_flag = true; cta_enabled = (showCTA_flag && (bbccookies_flag === 'ON')); (function(){var m="ckns_policy",q="Thu, 01 Jan 1970 00:00:00 GMT",i={ads:true,personalisation:true,performance:true,necessary:true};function c(u){if(c.cache[u]){return c.cache[u]}var t=u.split("/"),v=[""];do{v.unshift((t.join("/")||"/"));t.pop()}while(v[0]!=="/");c.cache[u]=v;return v}c.cache={};function a(u){if(a.cache[u]){return a.cache[u]}var v=u.split("."),t=[];while(v.length&&"|co.uk|com|".indexOf("|"+v.join(".")+"|")===-1){if(v.length){t.push(v.join("."))}v.shift()}c.cache[u]=t;return t}a.cache={};function s(t,y,u){var E=[""].concat(a(window.location.hostname)),B=c(window.location.pathname),D="",w,C;for(var x=0,A=E.length;x<A;x++){w=E[x];for(var v=0,z=B.length;v<z;v++){C=B[v];D=t+"="+y+";"+(w?"domain="+w+";":"")+(C?"path="+C+";":"")+(u?"expires="+u+";":"");bbccookies.set(D,true)}}}window.bbccookies={POLICY_REFRESH_DATE_MILLIS:new Date(2015,4,21,0,0,0,0).getTime(),POLICY_EXPIRY_COOKIENAME:"ckns_policy_exp",_setEverywhere:s,cookiesEnabled:function(){var t="ckns_testcookie"+Math.floor(Math.random()*100000);this.set(t+"=1");if(this.get().indexOf(t)>-1){e(t);return true}return false},get:function(){return document.cookie},getCrumb:function(t){if(!t){return null}return decodeURIComponent(document.cookie.replace(new RegExp("(?:(?:^|.*;)\\s*"+encodeURIComponent(t).replace(/[\-\.\+\*]/g,"\\$&")+"\\s*\\=\\s*([^;]*).*$)|^.*$"),"$1"))||null},policyRequiresRefresh:function(){var u=new Date();u.setHours(0);u.setMinutes(0);u.setSeconds(0);u.setMilliseconds(0);if(bbccookies.POLICY_REFRESH_DATE_MILLIS<=u.getTime()){var t=bbccookies.getCrumb(bbccookies.POLICY_EXPIRY_COOKIENAME);if(t){t=new Date(parseInt(t));t.setYear(t.getFullYear()-1);return bbccookies.POLICY_REFRESH_DATE_MILLIS>=t.getTime()}else{return true}}else{return false}},_setPolicy:function(t){return f.apply(this,arguments)},readPolicy:function(){return l.apply(this,arguments)},_deletePolicy:function(){s(m,"",q)},_isConfirmed:function(){return n()!==null},_acceptsAll:function(){var t=l();return t&&!(j(t).indexOf("0")>-1)},_getCookieName:function(){return b.apply(this,arguments)},_showPrompt:function(){var t=((!this._isConfirmed()||this.policyRequiresRefresh())&&window.cta_enabled&&this.cookiesEnabled()&&!window.bbccookies_disable);return(window.orb&&window.orb.fig)?t&&(window.orb.fig("no")||window.orb.fig("ck")):t},_getPolicy:this.readPolicy};function b(u){var t=(""+u).match(/^([^=]+)(?==)/);return(t&&t.length?t[0]:"")}function j(t){return""+(t.ads?1:0)+(t.personalisation?1:0)+(t.performance?1:0)}function f(x){if(typeof x==="undefined"){x=i}if(typeof arguments[0]==="string"){var u=arguments[0],w=arguments[1];if(u==="necessary"){w=true}x=l();x[u]=w}else{if(typeof arguments[0]==="object"){x.necessary=true}}var v=new Date();v.setYear(v.getFullYear()+1);bbccookies.set(m+"="+j(x)+";domain=bbc.co.uk;path=/;expires="+v.toUTCString()+";");bbccookies.set(m+"="+j(x)+";domain=bbc.com;path=/;expires="+v.toUTCString()+";");bbccookies.set(m+"="+j(x)+";domain=bbci.co.uk;path=/;expires="+v.toUTCString()+";");var t=new Date(v.getTime());t.setMonth(t.getMonth()+1);bbccookies.set(bbccookies.POLICY_EXPIRY_COOKIENAME+"="+v.getTime()+";domain=bbc.co.uk;path=/;expires="+t.toUTCString()+";");bbccookies.set(bbccookies.POLICY_EXPIRY_COOKIENAME+"="+v.getTime()+";domain=bbc.com;path=/;expires="+t.toUTCString()+";");bbccookies.set(bbccookies.POLICY_EXPIRY_COOKIENAME+"="+v.getTime()+";domain=bbci.co.uk;path=/;expires="+t.toUTCString()+";");return x}function o(t){if(t===null){return null}var u=t.split("");return{ads:!!+u[0],personalisation:!!+u[1],performance:!!+u[2],necessary:true}}function n(){var t=new RegExp("(?:^|; ?)"+m+"=(\\d\\d\\d)($|;)"),u=document.cookie.match(t);if(!u){return null}return u[1]}function l(t){var u=o(n());if(!u){u=i}if(t){return u[t]}else{return u}}function e(t){return document.cookie=t+"=;expires="+q+";"}var g=!(window.bbccookies_flag==="ON"&&!bbccookies._acceptsAll()&&!window.bbccookies_disable);var k={},d={"personalisation":"ckps_.+|X-AB-iplayer-.+|ACTVTYMKR|BBC_EXAMPLE_COOKIE|BBCIplayer|BBCiPlayerM|BBCIplayerSession|BBCMediaselector|BBCPostcoder|bbctravel|CGISESSID|ed|food-view|forceDesktop|h4|IMRID|locserv|MyLang|myloc|NTABS|ttduserPrefs|V5|WEATHER|BBCScienceDiscoveryPlaylist_.+|bitratePref|correctAnswerCount|genreCookie|highestQuestionScore|incorrectAnswerCount|longestStreak|MSCSProfile|programmes-oap-expanded|quickestAnswer|score|servicePanel|slowestAnswer|totalTimeForAllFormatted|v|BBCwords|score|correctAnswerCount|highestQuestionScore|hploc|BGUID|BBCWEACITY|mstouch|myway|BBCNewsCustomisation|cbbc_anim|cbeebies_snd|bbcsr_usersx|cbeebies_rd|BBC-Latest_Blogs|zh-enc|pref_loc|m|bbcEmp.+|recs-.+|_lvd2|_lvs2|tick|_fcap_CAM1|_rcc2","performance":"ckpf_.+|optimizely.*|BBCLiveStatsClick|id|_em_.+|cookies_enabled|mbox|mbox-admin|mc_.+|omniture_unique|s_.+|sc_.+|adpolicyAdDisplayFrequency|s1|ns_session|ns_cookietest|ns_ux|NO-SA|tr_pr1|gvsurvey|bbcsurvey|si_v|sa_labels|obuid|mm_.+|mmid|mmcore.+|mmpa.+","ads":"ckad_.+|rsi_segs|c","necessary":"ckns_.+|BBC-UID|blq\\.dPref|SSO2-UID|BBC-H2-User|rmRpDetectReal|bbcComSurvey|IDENTITY_ENV|IDENTITY|IDENTITY-HTTPS|IDENTITY_SESSION|BBCCOMMENTSMODULESESSID|bbcBump.+|IVOTE_VOTE_HISTORY|pulse|BBCPG|BBCPGstat|ecos\\.dt"};function r(){var x=document.cookie.replace(/; +/g,";").split(";"),u,v=[];for(var w=0,t=x.length;w<t;w++){u=x[w];v.push(bbccookies._getCookieName(u))}return v}function h(w){var v=JSON.stringify(w);if(typeof(k[v])!=="undefined"){return k[v]}var u="";for(var t in w){if(w.hasOwnProperty(t)&&d[t]){if(w[t]===true){u+=(u?"|":"")+d[t]}}}k[v]=new RegExp("^("+(u?u:".*")+")$","i");return k[v]}bbccookies.getPolicyExpiryDateTime=function(){return bbccookies.POLICY_EXPIRY_COOKIENAME};bbccookies.purge=function(){var u=bbccookies.readPolicy(),w=r(),x;for(var v=0,t=w.length;v<t;v++){if(!bbccookies.isAllowed(w[v],u)){x=new Date();x.setTime(0);x=x.toUTCString();s(w[v],"deleted",x)}}};function p(){if(g){return}bbccookies.purge();contentLoaded(window,bbccookies.purge);if(window.addEventListener){window.addEventListener("beforeunload",bbccookies.purge,false)}else{if(window.attachEvent){window.attachEvent("onbeforeunload",bbccookies.purge)}else{window.onbeforeunload=bbccookies.purge}}}bbccookies.set=function(u,t){if(g){return document.cookie=u}var v=bbccookies._getCookieName(u);if(t||bbccookies.isAllowed(v)){return document.cookie=u}return null};bbccookies.isAllowed=function(v){var u=bbccookies.readPolicy();var t=h(u);return t.test(v)};p()})(); /*! * contentloaded.js * * Author: Diego Perini (diego.perini at gmail.com) * Summary: cross-browser wrapper for DOMContentLoaded * Updated: 20101020 * License: MIT * Version: 1.2 * * URL: * http://javascript.nwbox.com/ContentLoaded/ * http://javascript.nwbox.com/ContentLoaded/MIT-LICENSE * */ function contentLoaded(d,i){var c=false,h=true,k=d.document,j=k.documentElement,a=k.addEventListener,n=a?"addEventListener":"attachEvent",l=a?"removeEventListener":"detachEvent",b=a?"":"on",m=function(o){if(o.type==="readystatechange"&&k.readyState!="complete"){return}(o.type==="load"?d:k)[l](b+o.type,m,false);if(!c&&(c=true)){i.call(d,o.type||o)}},g=function(){try{j.doScroll("left")}catch(o){setTimeout(g,50);return}m("poll")};if(k.readyState==="complete"){i.call(d,"lazy")}else{if(!a&&j.doScroll){try{h=!d.frameElement}catch(f){}if(h){g()}}k[n](b+"DOMContentLoaded",m,false);k[n](b+"readystatechange",m,false);d[n](b+"load",m,false)}}if(typeof(require)==="function"&&!require.defined("orb/cookies")){define("orb/cookies",function(){return window.bbccookies})}; /*]]>*/</script> <script type="text/javascript"> define('orb/cookies', function() { return window.bbccookies; }); </script> <script type="text/javascript">/*<![CDATA[*/ (function(){window.orb={};window.orb.figState={ad:0,ap:0,ck:1,eu:1,mb:0,tb:0,uk:1,df:1};window.orb.fig=function(a){return(arguments.length)?window.orb.figState[a]:window.orb.figState};window.orb.fig.device={};window.orb.fig.geo={};window.orb.fig.user={};window.orb.fig.isDefault=function(){return window.orb.fig("df")};window.orb.fig.device.isTablet=function(){return window.orb.fig("tb")};window.orb.fig.device.isMobile=function(){return window.orb.fig("mb")};window.orb.fig.geo.isUK=function(){return window.orb.fig("uk")};window.orb.fig.geo.isEU=function(){return window.orb.fig("eu")};window.fig=window.fig||{};window.fig.manager={include:function(e){e=e||window;var g=false;var j=e.document,k=j.cookie,i=k.match(/(?:^|; ?)ckns_orb_fig=([^;]+)/),h;if(i){i=this.deserialise(decodeURIComponent(RegExp.$1));this.setFig(e,i)}if(window.fig.async&&typeof JSON!="undefined"){var b=(document.cookie.match("(^|; )ckns_orb_cachedfig=([^;]*)")||0)[2];h=b?JSON.parse(b):null;if(h){this.setFig(e,h);g=true}}var a="https://web.archive.org/web/20180213224513/https://fig.bbc.co.uk/frameworks/fig/1/fig.js";if(g){j.write('<script src="'+a+'" async><'+"/script>")}else{j.write('<script src="'+a+'"><'+"/script>")}},confirm:function(a){return true},setFig:function(a,b){(function(){a.orb=a.orb||{};a.orb.figState=b})()},deserialise:function(b){var a={};b.replace(/([a-z]{2}):([0-9]+)/g,function(){a[RegExp.$1]=+RegExp.$2});return a}}})();fig.manager.include();/*]]>*/</script>  <script type="text/javascript">window.bbcFlagpoles_istats="ON",require.config({paths:{"istats-1":"//web.archive.org/web/20180213224513/http://nav.files.bbci.co.uk/nav-analytics/0.1.0-89/js/istats-1","megavolt-client":"//web.archive.org/web/20180213224513/http://nav.files.bbci.co.uk/nav-analytics/0.1.0-89/js/megavolt-client"},config:{"megavolt-client":{baseUrl:"https://web.archive.org/web/20180213224513/https://mvt.api.bbc.com"}}}),require(["istats-1","orb/cookies"],function(e,t){if(t.isAllowed("s1")){e.addCollector({name:"default",url:"https://web.archive.org/web/20180213224513/https://sa.bbc.co.uk/bbc/bbc/s",separator:"&"});var a="contact.page";e.setCountername(a),window.istats_countername&&e.setCountername(window.istats_countername),e.addLabels("ml_name=webmodule&ml_version=89")}});</script> <script type="text/javascript">/*<![CDATA[*/ window.bbcFlagpoles_istats = 'ON'; window.orb = window.orb || {}; if (typeof bbccookies !== 'undefined' && bbccookies.isAllowed('s1')) { var istatsTrackingUrl = '//web.archive.org/web/20180213224513/http://sa.bbc.co.uk/bbc/bbc/s?name=contact.page&pal_route=index_show&app_type=responsive&language=en-GB&pal_webapp=contact&prod_name=contact&app_name=contact'; require(['istats-1'], function (istats) { var counterName = (window.istats_countername) ? window.istats_countername : istatsTrackingUrl.match(/[\?&]name=([^&]*)/i)[1]; istats.setCountername(counterName); istats.addLabels('pal_route=index_show&app_type=responsive&language=en-GB&pal_webapp=contact&prod_name=contact&app_name=contact'); var c = (document.cookie.match(/\bckns_policy=(\d\d\d)/) || []).pop() || ''; istats.addLabels({ 'blq_s': '4d', 'blq_r': '3.5', 'blq_v': 'default', 'blq_e': 'pal', 'bbc_mc': (c ? 'ad' + c.charAt(0) + 'ps' + c.charAt(1) + 'pf' + c.charAt(2) : 'not_set') } ); }); } /*]]>*/</script> <script type="text/javascript">/*<![CDATA[*/ (function(undefined){if(!window.bbc){window.bbc={}}var ROLLING_PERIOD_DAYS=30;window.bbc.Mandolin=function(id,segments,opts){var now=new Date().getTime(),storedItem,DEFAULT_START=now,DEFAULT_RATE=1,COOKIE_NAME="ckpf_mandolin";opts=opts||{};this._id=id;this._segmentSet=segments;this._store=new window.window.bbc.Mandolin.Storage(COOKIE_NAME);this._opts=opts;this._rate=(opts.rate!==undefined)?+opts.rate:DEFAULT_RATE;this._startTs=(opts.start!==undefined)?new Date(opts.start).getTime():new Date(DEFAULT_START).getTime();this._endTs=(opts.end!==undefined)?new Date(opts.end).getTime():daysFromNow(ROLLING_PERIOD_DAYS);this._signupEndTs=(opts.signupEnd!==undefined)?new Date(opts.signupEnd).getTime():this._endTs;this._segment=null;if(typeof id!=="string"){throw new Error("Invalid Argument: id must be defined and be a string")}if(Object.prototype.toString.call(segments)!=="[object Array]"){throw new Error("Invalid Argument: Segments are required.")}if(opts.rate!==undefined&&(opts.rate<0||opts.rate>1)){throw new Error("Invalid Argument: Rate must be between 0 and 1.")}if(this._startTs>this._endTs){throw new Error("Invalid Argument: end date must occur after start date.")}if(!(this._startTs<this._signupEndTs&&this._signupEndTs<=this._endTs)){throw new Error("Invalid Argument: SignupEnd must be between start and end date")}removeExpired.call(this,now);var overrides=window.bbccookies.get().match(/ckns_mandolin_setSegments=([^;]+)/);if(overrides!==null){eval("overrides = "+decodeURIComponent(RegExp.$1)+";");if(overrides[this._id]&&this._segmentSet.indexOf(overrides[this._id])==-1){throw new Error("Invalid Override: overridden segment should exist in segments array")}}if(overrides!==null&&overrides[this._id]){this._segment=overrides[this._id]}else{if((storedItem=this._store.getItem(this._id))){this._segment=storedItem.segment}else{if(this._startTs<=now&&now<this._signupEndTs&&now<=this._endTs&&this._store.isEnabled()===true){this._segment=pick(segments,this._rate);if(opts.end===undefined){this._store.setItem(this._id,{segment:this._segment})}else{this._store.setItem(this._id,{segment:this._segment,end:this._endTs})}log.call(this,"mandolin_segment")}}}log.call(this,"mandolin_view")};window.bbc.Mandolin.prototype.getSegment=function(){return this._segment};function log(actionType,params){var that=this;require(["istats-1"],function(istats){istats.log(actionType,that._id+":"+that._segment,params?params:{})})}function removeExpired(expires){var items=this._store.getItems(),expiresInt=+expires;for(var key in items){if(items[key].end!==undefined&&+items[key].end<expiresInt){this._store.removeItem(key)}}}function getLastExpirationDate(data){var winner=0,rollingExpire=daysFromNow(ROLLING_PERIOD_DAYS);for(var key in data){if(data[key].end===undefined&&rollingExpire>winner){winner=rollingExpire}else{if(+data[key].end>winner){winner=+data[key].end}}}return(winner)?new Date(winner):new Date(rollingExpire)}window.bbc.Mandolin.prototype.log=function(params){log.call(this,"mandolin_log",params)};window.bbc.Mandolin.prototype.convert=function(params){log.call(this,"mandolin_convert",params);this.convert=function(){}};function daysFromNow(n){var endDate;endDate=new Date().getTime()+(n*60*60*24)*1000;return endDate}function pick(segments,rate){var picked,min=0,max=segments.length-1;if(typeof rate==="number"&&Math.random()>rate){return null}do{picked=Math.floor(Math.random()*(max-min+1))+min}while(picked>max);return segments[picked]}window.bbc.Mandolin.Storage=function(name){validateCookieName(name);this._cookieName=name;this._isEnabled=(bbccookies.isAllowed(this._cookieName)===true&&bbccookies.cookiesEnabled()===true)};window.bbc.Mandolin.Storage.prototype.setItem=function(key,value){var storeData=this.getItems();storeData[key]=value;this.save(storeData);return value};window.bbc.Mandolin.Storage.prototype.isEnabled=function(){return this._isEnabled};window.bbc.Mandolin.Storage.prototype.getItem=function(key){var storeData=this.getItems();return storeData[key]};window.bbc.Mandolin.Storage.prototype.removeItem=function(key){var storeData=this.getItems();delete storeData[key];this.save(storeData)};window.bbc.Mandolin.Storage.prototype.getItems=function(){return deserialise(this.readCookie(this._cookieName)||"")};window.bbc.Mandolin.Storage.prototype.save=function(data){window.bbccookies.set(this._cookieName+"="+encodeURIComponent(serialise(data))+"; expires="+getLastExpirationDate(data).toUTCString()+";")};window.bbc.Mandolin.Storage.prototype.readCookie=function(name){var nameEq=name+"=",ca=window.bbccookies.get().split("; "),i,c;validateCookieName(name);for(i=0;i<ca.length;i++){c=ca[i];if(c.indexOf(nameEq)===0){return decodeURIComponent(c.substring(nameEq.length,c.length))}}return null};function serialise(o){var str="";for(var p in o){if(o.hasOwnProperty(p)){str+='"'+p+'"'+":"+(typeof o[p]==="object"?(o[p]===null?"null":"{"+serialise(o[p])+"}"):'"'+o[p].toString()+'"')+","}}return str.replace(/,\}/g,"}").replace(/,$/g,"")}function deserialise(str){var o;str="{"+str+"}";if(!validateSerialisation(str)){throw"Invalid input provided for deserialisation."}eval("o = "+str);return o}var validateSerialisation=(function(){var OBJECT_TOKEN="<Object>",ESCAPED_CHAR='"\\n\\r\\u2028\\u2029\\u000A\\u000D\\u005C',ALLOWED_CHAR="([^"+ESCAPED_CHAR+"]|\\\\["+ESCAPED_CHAR+"])",KEY='"'+ALLOWED_CHAR+'+"',VALUE='(null|"'+ALLOWED_CHAR+'*"|'+OBJECT_TOKEN+")",KEY_VALUE=KEY+":"+VALUE,KEY_VALUE_SEQUENCE="("+KEY_VALUE+",)*"+KEY_VALUE,OBJECT_LITERAL="({}|{"+KEY_VALUE_SEQUENCE+"})",objectPattern=new RegExp(OBJECT_LITERAL,"g");return function(str){if(str.indexOf(OBJECT_TOKEN)!==-1){return false}while(str.match(objectPattern)){str=str.replace(objectPattern,OBJECT_TOKEN)}return str===OBJECT_TOKEN}})();function validateCookieName(name){if(name.match(/ ,;/)){throw"Illegal name provided, must be valid in browser cookie."}}})(); /*]]>*/</script> <script type="text/javascript"> document.documentElement.className += (document.documentElement.className? ' ' : '') + 'orb-js'; fig.manager.confirm(); </script> <script src="https://web.archive.org/web/20180213224513js_/http://static.bbci.co.uk/frameworks/barlesque/3.21.31/orb/4/script/orb/api.min.js"></script> <script src="https://web.archive.org/web/20180213224513js_/http://static.bbci.co.uk/frameworks/barlesque/3.21.31/orb/4/script/orb/font.min.js"></script> <script type="text/javascript"> var blq = { environment: function() { return 'live'; } } </script> <script type="text/javascript"> /*<![CDATA[*/ function oqsSurveyManager(w, flag) { if (flag !== 'OFF' && (w.orb.fig("no") || w.orb.fig("uk"))) { w.document.write('<script type="text/javascript" src="https://web.archive.org/web/20180213224513/http://static.bbci.co.uk/frameworks/barlesque/3.21.31/orb/4/script/vendor/edr.min.js"><'+'/script>'); } } oqsSurveyManager(window, 'ON'); /*]]>*/ </script>  <script type="text/javascript"> /*<![CDATA[*/ var _sf_startpt = (new Date()).getTime(); /*]]>*/ </script><style type="text/css">.bbccom_display_none{display:none;}</style><script type="text/javascript"> /*<![CDATA[*/ var bbcdotcomConfig, googletag = googletag || {}; googletag.cmd = googletag.cmd || []; var bbcdotcom = false; (function(){ if(typeof require !== 'undefined') { require({ paths:{ "bbcdotcom":"https://web.archive.org/web/20180213224513/http://static.bbci.co.uk/bbcdotcom/1.74.413/script" } }); } })(); /*]]>*/ </script><script type="text/javascript"> /*<![CDATA[*/ var bbcdotcom = { adverts: { keyValues: { set: function() {} } }, advert: { write: function () {}, show: function () {}, isActive: function () { return false; }, layout: function() { return { reset: function() {} } } }, config: { init: function() {}, isActive: function() {}, setSections: function() {}, isAdsEnabled: function() {}, setAdsEnabled: function() {}, isAnalyticsEnabled: function() {}, setAnalyticsEnabled: function() {}, setAssetPrefix: function() {}, setVersion: function () {}, setJsPrefix: function() {}, setSwfPrefix: function() {}, setCssPrefix: function() {}, setConfig: function() {}, getAssetPrefix: function() {}, getJsPrefix: function () {}, getSwfPrefix: function () {}, getCssPrefix: function () {}, isOptimizelyEnabled: function() {} }, survey: { init: function(){ return false; } }, data: {}, init: function() {}, objects: function(str) { return false; }, locale: { set: function() {}, get: function() {} }, setAdKeyValue: function() {}, utils: { addEvent: function() {}, addHtmlTagClass: function() {}, log: function () {} }, addLoadEvent: function() {} }; /*]]>*/ </script><script type="text/javascript"> /*<![CDATA[*/ (function(){ if (typeof orb !== 'undefined' && typeof orb.fig === 'function') { if (orb.fig('ad') && orb.fig('uk') == 0) { bbcdotcom.data = { ads: (orb.fig('ad') ? 1 : 0), stats: (orb.fig('uk') == 0 ? 1 : 0), statsProvider: orb.fig('ap') }; } } else { document.write('<script type="text/javascript" src="'+('https:' == document.location.protocol ? 'https://web.archive.org/web/20180213224513/https://www.bbc.com' : 'https://web.archive.org/web/20180213224513/http://tps.bbc.com')+'/wwscripts/data">\x3C/script>'); } })(); /*]]>*/ </script><script type="text/javascript"> /*<![CDATA[*/ (function(){ if (typeof orb === 'undefined' || typeof orb.fig !== 'function') { bbcdotcom.data = { ads: bbcdotcom.data.a, stats: bbcdotcom.data.b, statsProvider: bbcdotcom.data.c }; } if (bbcdotcom.data.ads == 1) { document.write('<script type="text/javascript" src="'+('https:' == document.location.protocol ? 'https://web.archive.org/web/20180213224513/https://www.bbc.com' : 'https://web.archive.org/web/20180213224513/http://www.bbc.com')+'/wwscripts/flag">\x3C/script>'); } })(); /*]]>*/ </script><script type="text/javascript"> /*<![CDATA[*/ (function(){ if (window.bbcdotcom && (typeof bbcdotcom.flag == 'undefined' || (typeof bbcdotcom.data.ads !== 'undefined' && bbcdotcom.flag.a != 1))) { bbcdotcom.data.ads = 0; } if (/[?|&]ads/.test(window.location.href) || /(^|; )ads=on; /.test(document.cookie) || /; ads=on(; |$)/.test(document.cookie)) { bbcdotcom.data.ads = 1; bbcdotcom.data.stats = 1; } if (window.bbcdotcom && (bbcdotcom.data.ads == 1 || bbcdotcom.data.stats == 1)) { bbcdotcom.assetPrefix = "https://web.archive.org/web/20180213224513/http://static.bbci.co.uk/bbcdotcom/1.74.413/"; if (/(sandbox|int)(.dev)*.bbc.co*/.test(window.location.href) || /[?|&]ads-debug/.test(window.location.href) || document.cookie.indexOf('ads-debug=') !== -1) { document.write('<link rel="stylesheet" type="text/css" href="https://web.archive.org/web/20180213224513/http://static.bbci.co.uk/bbcdotcom/1.74.413/style/dist/bbcdotcom.dev.css" />'); } else { document.write('<link rel="stylesheet" type="text/css" href="https://web.archive.org/web/20180213224513/http://static.bbci.co.uk/bbcdotcom/1.74.413/style/dist/bbcdotcom.css" />'); } (function() { var useSSL = 'https:' == document.location.protocol; var src = (useSSL ? 'https:' : 'http:') + '//web.archive.org/web/20180213224513/http://www.googletagservices.com/tag/js/gpt.js'; document.write('<scr' + 'ipt src="' + src + '">\x3C/script>'); })(); if (/(sandbox|int)(.dev)*.bbc.co*/.test(window.location.href) || /[?|&]ads-debug/.test(window.location.href) || document.cookie.indexOf('ads-debug=') !== -1) { document.write('<script type="text/javascript" src="https://web.archive.org/web/20180213224513/http://static.bbci.co.uk/bbcdotcom/1.74.413/script/dist/bbcdotcom.dev.js">\x3C/script>'); } else { document.write('<script type="text/javascript" src="https://web.archive.org/web/20180213224513/http://static.bbci.co.uk/bbcdotcom/1.74.413/script/dist/bbcdotcom.js">\x3C/script>'); } } })(); /*]]>*/ </script><script type="text/javascript"> if (window.bbcdotcom && bbcdotcom.data.stats == 1) { document.write('<link rel="dns-prefetch" href="//web.archive.org/web/20180213224513/http://secure-us.imrworldwide.com/">'); document.write('<link rel="dns-prefetch" href="//web.archive.org/web/20180213224513/http://me-cdn.effectivemeasure.net/">'); document.write('<link rel="dns-prefetch" href="//web.archive.org/web/20180213224513/http://ssc.api.bbc.com/">'); } if (window.bbcdotcom && bbcdotcom.data.ads == 1) { document.write('<link rel="dns-prefetch" href="//web.archive.org/web/20180213224513/http://www.googletagservices.com/">'); } </script><script type="text/javascript"> if (window.bbcdotcom && bbcdotcom.data.ads == 1) { document.write('<meta name="google-site-verification" content="auTeTTwSt_KBY_4iDoR00Lwb7-qzx1IgzJy6ztaWgEI" />'); } </script><script type="text/javascript"> /*<![CDATA[*/ (function(){ if (window.bbcdotcom && (bbcdotcom.data.ads == 1 || bbcdotcom.data.stats == 1)) { bbcdotcomConfig = {"adFormat":"standard","adKeyword":"","adMode":"smart","adsEnabled":true,"appAnalyticsSections":"","asyncEnabled":false,"disableInitialLoad":false,"advertInfoPageUrl":"https:\/\/web.archive.org\/web\/20180213224513\/http:\/\/www.bbc.com\/privacy\/cookies\/international\/","advertisementText":"Advertisement","analyticsEnabled":true,"appName":"contact","assetPrefix":"https:\/\/web.archive.org\/web\/20180213224513\/http:\/\/static.bbci.co.uk\/bbcdotcom\/1.74.413\/","customAdParams":[],"customStatsParams":[],"headline":"","id":"","inAssociationWithText":"in association with","keywords":"","language":"","orbTransitional":false,"outbrainEnabled":true,"outbrainSportEnabled":true,"adsenseEnabled":true,"adsportappEnabled":true,"lotameEnabled":true,"platinumEnabled":true,"tlNewsIndexEnabled":false,"tlNewsStoryEnabled":false,"tlNewsFpEnabled":false,"winterOlympicsEnabled":false,"optimizelyEnabled":false,"grapeshotEnabled":false,"palEnv":"live","productName":"","sections":[],"comScoreEnabled":true,"comscoreSite":"bbc","comscoreID":"19293874","comscorePageName":"","slots":"","sponsoredByText":"is sponsored by","adsByGoogleText":"Ads by Google","summary":"","type":"","features":{"testfeature":{"name":"testfeature","envs":["sandbox","int","test"],"on":true,"options":{},"override":null},"lxadverts":{"name":"lxadverts","envs":[],"on":true,"options":{},"override":null}},"staticBase":"\/bbcdotcom","staticHost":"https:\/\/web.archive.org\/web\/20180213224513\/http:\/\/static.bbci.co.uk","staticVersion":"1.74.413","staticPrefix":"https:\/\/web.archive.org\/web\/20180213224513\/http:\/\/static.bbci.co.uk\/bbcdotcom\/1.74.413","dataHttp":"tps.bbc.com","dataHttps":"www.bbc.com","flagHttp":"www.bbc.co.uk","flagHttps":"www.bbc.co.uk","analyticsHttp":"sa.bbc.com","analyticsHttps":"ssa.bbc.com"}; bbcdotcom.config.init(bbcdotcomConfig, bbcdotcom.data, window.location, window.document); bbcdotcom.config.setAssetPrefix("https://web.archive.org/web/20180213224513/http://static.bbci.co.uk/bbcdotcom/1.74.413/"); bbcdotcom.config.setVersion("1.74.413"); document.write(''); document.write(''); document.write(''); if (/[?|&]ex-dp/.test(window.location.href) || document.cookie.indexOf('ex-dp=') !== -1) { bbcdotcom.utils.addHtmlTagClass('bbcdotcom-ex-dp'); } } })(); /*]]>*/ </script><script type="text/javascript"> var initOptimizely = (function(isEnabled){ if(!isEnabled) return; var logger = window.bbcdotcom.Logger('bbcdotcom:head:optimizely'); /* Allow Optimizely in these paths */ var allowPaths = ['/', '/wwhp']; /* Only run on optimizely on homepage */ if (bbcdotcom.utils && allowPaths.indexOf(window.location.pathname) !== -1 && window.bbccookies && bbccookies.readPolicy('performance') ){ /* set correct OptimizelyURL for prod or sandbox */ var optimizelyURL = "https://web.archive.org/web/20180213224513/https://cdn.optimizely.com/public/4621041136/s/bbccom_sandbox.js"; if(window.location.hostname === 'www.bbc.com') { optimizelyURL = "https://web.archive.org/web/20180213224513/https://cdn.optimizely.com/public/4621041136/s/bbccom_prod.js"; } /* Set cookie to 1 year */ window['optimizely'] = window['optimizely'] || []; window['optimizely'].push({ "type": "cookieExpiration", "cookieExpirationDays": 365 }); /* Require Optimizely script and initialize tests */ require(['jquery-1', optimizelyURL], function($) { var optimizely = window['optimizely']; /* Start optimizely experiments */ /* End optimizely experiments */ }); } })( bbcdotcom.config.isOptimizelyEnabled() ); </script><script type="text/javascript"> /*<![CDATA[*/ (function() { window.bbcdotcom.head = true; }()); /*]]>*/ </script>  <script type="text/javascript"> // Globally available search context window.SEARCHBOX={"variant":"default","locale":"en","navSearchboxStaticPrefix":"//web.archive.org/web/20180213224513/http://nav.files.bbci.co.uk/searchbox/1.0.0-136","searchboxAppStaticPrefix":"//web.archive.org/web/20180213224513/http://search.files.bbci.co.uk/searchbox-app/1.0.19","searchFormHtml":"<div tabindex=\"-1\" data-reactid=\".jval9y49og\" data-react-checksum=\"1886463233\"><div data-reactid=\".jval9y49og.0\"><section class=\"se-searchbox-panel\" data-reactid=\".jval9y49og.0.0\"><div class=\"se-g-wrap\" data-reactid=\".jval9y49og.0.0.0\"><div class=\"se-g-layout\" data-reactid=\".jval9y49og.0.0.0.0\"><div class=\"se-g-layout__item se-searchbox-title\" aria-hidden=\"true\" data-reactid=\".jval9y49og.0.0.0.0.0\">search</div><div class=\"se-g-layout__item se-searchbox\" data-reactid=\".jval9y49og.0.0.0.0.1\"><form accept-charset=\"utf-8\" id=\"searchboxDrawerForm\" method=\"get\" action=\"https://search.bbc.co.uk/search\" data-reactid=\".jval9y49og.0.0.0.0.1.0\"><label class=\"se-searchbox__input\" for=\"se-searchbox-input-field\" data-reactid=\".jval9y49og.0.0.0.0.1.0.0\"><span class=\"se-sr-only\" data-reactid=\".jval9y49og.0.0.0.0.1.0.0.0\">Search Term</span><input name=\"q\" type=\"text\" value=\"\" id=\"se-searchbox-input-field\" class=\"se-searchbox__input__field\" maxlength=\"512\" autocomplete=\"off\" autocorrect=\"off\" autocapitalize=\"off\" spellcheck=\"false\" tabindex=\"0\" data-reactid=\".jval9y49og.0.0.0.0.1.0.0.1\"/></label><input type=\"hidden\" name=\"scope\" value=\"\" data-reactid=\".jval9y49og.0.0.0.0.1.0.2\"/><button type=\"submit\" class=\"se-searchbox__submit\" tabindex=\"0\" data-reactid=\".jval9y49og.0.0.0.0.1.0.3\">Search</button><button type=\"button\" class=\"se-searchbox__clear se-searchbox__clear--visible\" tabindex=\"0\" data-reactid=\".jval9y49og.0.0.0.0.1.0.4\">Close</button></form></div></div></div></section><div aria-live=\"polite\" aria-atomic=\"true\" class=\"se-suggestions-container\" data-reactid=\".jval9y49og.0.1\"><section class=\"se-g-wrap\" data-reactid=\".jval9y49og.0.1.0\"></section></div></div></div>","searchScopePlaceholder":"","searchScopeParam":"","searchScopeTemplate":"","searchPlaceholderWrapperStart":"","searchPlaceholderWrapperEnd":""}; window.SEARCHBOX.suppress = false; window.SEARCHBOX.searchScope = SEARCHBOX.searchScopeTemplate.split('-')[0]; </script> <link rel="stylesheet" href="//web.archive.org/web/20180213224513cs_/http://nav.files.bbci.co.uk/searchbox/1.0.0-136/css/main.css">    <link rel="stylesheet" href="//web.archive.org/web/20180213224513cs_/http://static.bbc.co.uk/id/0.37.24/style/id-cta.css"/> <link rel="stylesheet" href="//web.archive.org/web/20180213224513cs_/http://static.bbc.co.uk/id/0.37.24/style/id-cta-v5.css"/>  <script type="text/javascript"> /* <![CDATA[ */ var map = {}; if (typeof(map['jssignals-1']) == 'undefined') { map['jssignals-1'] = 'https://web.archive.org/web/20180213224513/https://static.bbc.co.uk/frameworks/jssignals/0.3.6/modules/jssignals-1'; } require({paths: map}); /* ]]> */ </script> <script src="//web.archive.org/web/20180213224513js_/http://static.bbc.co.uk/id/0.37.24/modules/idcta/dist/idcta-1.min.js"></script> <script type="text/javascript"> (function () { if (!window.require) { throw new Error('idcta: could not find require module'); } if(typeof(map) == 'undefined') { var map = {}; } if(!!document.createElementNS && !!document.createElementNS('http://www.w3.org/2000/svg', "svg").createSVGRect) { document.documentElement.className += ' id-svg'; } var ptrt = RegExp("[\\?&]ptrt=([^&#]*)").exec(document.location.href); var ENDPOINT_URL = '//' + ((window.location.protocol == "https:") ? ('ssl.bbc.co.uk').replace("www.", "ssl.") : ('ssl.bbc.co.uk').replace("ssl.", "www.")); var ENDPOINT_CONFIG = ('/idcta/config?callback&locale=en-GB&ptrt=' + encodeURI((ptrt ? ptrt[1] : document.location.href))).replace(/\&/g, '&'); var ENDPOINT_TRANSLATIONS = '/idcta/translations?callback&locale=en-GB'; map['idapp-1'] = '//web.archive.org/web/20180213224513/http://static.bbc.co.uk/idapp/0.72.58/modules/idapp/idapp-1'; map['idcta'] = '//web.archive.org/web/20180213224513/http://static.bbc.co.uk/id/0.37.24/modules/idcta'; map['idcta/config'] = [ENDPOINT_URL + ENDPOINT_CONFIG, '//web.archive.org/web/20180213224513/http://static.bbc.co.uk/id/0.37.24/modules/idcta/fallbackConfig']; map['idcta/translations'] = [ENDPOINT_URL + ENDPOINT_TRANSLATIONS, '//web.archive.org/web/20180213224513/http://static.bbc.co.uk/id/0.37.24/modules/idcta/fallbackTranslations']; require({paths: map}); /* * Temporary code * To be removed when old id-statusbar-config is no longer supported */ define('id-statusbar-config', ['idcta/id-config'], function(conf) { return conf; }); define('idcta/id-statusbar-config', ['idcta/id-config'], function(conf) { return conf; }); })(); </script> <link rel="stylesheet" href="//web.archive.org/web/20180213224513cs_/http://mybbc.files.bbci.co.uk/notification-ui/3.8.4/css/main.min.css"/> </head> <body> <div id="bbccom_interstitial_ad" class="bbccom_display_none"></div><div id="bbccom_interstitial" class="bbccom_display_none"><script type="text/javascript"> /*<![CDATA[*/ (function() { if (window.bbcdotcom && bbcdotcom.config.isActive('ads')) { googletag.cmd.push(function() { googletag.display('bbccom_interstitial'); }); } }()); /*]]>*/ </script></div><div id="bbccom_wallpaper_ad" class="bbccom_display_none"></div><div id="bbccom_wallpaper" class="bbccom_display_none"><script type="text/javascript"> /*<![CDATA[*/ (function() { var wallpaper; if (window.bbcdotcom && bbcdotcom.config.isActive('ads')) { if (bbcdotcom.config.isAsync()) { googletag.cmd.push(function() { googletag.display('bbccom_wallpaper'); }); } else if (typeof googletag !== "undefined" && typeof googletag.display === "function") { googletag.display("wallpaper"); } wallpaper = bbcdotcom.adverts.adRegister.getAd('wallpaper'); } }()); /*]]>*/ </script></div><script type="text/javascript"> /*<![CDATA[*/ (function() { if (window.bbcdotcom && bbcdotcom.config.isActive('ads')) { document.write(unescape('%3Cscript id="gnlAdsEnabled" class="bbccom_display_none"%3E%3C/script%3E')); } if (window.bbcdotcom && bbcdotcom.config.isActive('analytics')) { document.write(unescape('%3Cscript id="gnlAnalyticsEnabled" class="bbccom_display_none"%3E%3C/script%3E')); } }()); /*]]>*/ </script><script type="text/javascript"> /*<![CDATA[*/ (function() { window.bbcdotcom.bodyFirst = true; }()); /*]]>*/ </script> <div id="blq-global"> <div id="blq-pre-mast"> </div> </div> <script type="text/html" id="blq-bbccookies-tmpl"><![CDATA[ <section> <div id="bbccookies" class="bbccookies-banner orb-banner-wrapper bbccookies-d"> <div id="bbccookies-prompt" class="orb-banner b-g-p b-r b-f"> <h2 class="orb-banner-title"> Cookies on the BBC website </h2> <p class="orb-banner-content" dir="ltr"> The BBC has updated its cookie policy. We use cookies to ensure that we give you the best experience on our website. This includes cookies from third party social media websites if you visit a page which contains embedded content from social media. Such third party cookies may track your use of the BBC website.<span class="bbccookies-international-message"> We and our partners also use cookies to ensure we show you advertising that is relevant to you.</span> If you continue without changing your settings, we'll assume that you are happy to receive all cookies on the BBC website. However, you can change your cookie settings at any time. </p> <ul class="orb-banner-options"> <li id="bbccookies-continue"> <button type="button" id="bbccookies-continue-button">Continue</button> </li> <li id="bbccookies-settings"> <a href="/privacy/cookies/managing/cookie-settings.html">Change settings</a> </li> <li id="bbccookies-more"><a href="/privacy/cookies/bbc">Find out more</a></li></ul> </div> </div> </section> ]]></script> <script type="text/javascript">/*<![CDATA[*/ (function(){if(bbccookies._showPrompt()){var g=document,b=g.getElementById("blq-pre-mast"),e=g.getElementById("blq-bbccookies-tmpl"),a,f;if(b&&g.createElement){a=g.createElement("div");f=e.innerHTML;f=f.replace("<"+"![CDATA[","").replace("]]"+">","");a.innerHTML=f;b.appendChild(a);blqCookieContinueButton=g.getElementById("bbccookies-continue-button");blqCookieContinueButton.onclick=function(){a.parentNode.removeChild(a);return false};bbccookies._setPolicy(bbccookies.readPolicy())}var c=g.getElementById("bbccookies");if(c&&!window.orb.fig("uk")){c.className=c.className.replace(/\bbbccookies-d\b/,"");c.className=c.className+(" bbccookies-w")}}})(); /*]]>*/</script> <noscript><p style="position: absolute; top: -999em"><img src="https://web.archive.org/web/20180213224513im_/https://sa.bbc.co.uk/bbc/bbc/s?name=contact.page&ml_name=webmodule&ml_version=89&blq_js_enabled=0&blq_s=4d&blq_r=3.5&blq_v=default&blq_e=pal&pal_route=index_show&app_type=responsive&language=en-GB&pal_webapp=contact&prod_name=contact&app_name=contact" height="1" width="1" alt=""></p></noscript>  <script type="text/javascript">/*<![CDATA[*/ if (typeof bbccookies !== 'undefined' && bbccookies.isAllowed('s1')) { (function () { require(['istats-1'], function (istats) { istatsTrackingUrl = istats.getDefaultURL(); if (istats.isEnabled() && bbcFlagpoles_istats === 'ON') { sitestat(istatsTrackingUrl); } else { window.ns_pixelUrl = istatsTrackingUrl; /* used by Flash library to track */ } function sitestat(n) { var j = document, f = j.location, b = ""; if (j.cookie.indexOf("st_ux=") != -1) { var k = j.cookie.split(";"); var e = "st_ux", h = document.domain, a = "/"; if (typeof ns_ != "undefined" && typeof ns_.ux != "undefined") { e = ns_.ux.cName || e; h = ns_.ux.cDomain || h; a = ns_.ux.cPath || a } for (var g = 0, f = k.length; g < f; g++) { var m = k[g].indexOf("st_ux="); if (m != -1) { b = "&" + decodeURI(k[g].substring(m + 6)) } } bbccookies.set(e + "=; expires=" + new Date(new Date().getTime() - 60).toGMTString() + "; path=" + a + "; domain=" + h); } window.ns_pixelUrl = n; } }); })(); } else { window.istats = {enabled: false}; } /*]]>*/</script>   <header id="orb-banner" role="banner">   <div id="orb-header" class="orb-nav-pri orb-nav-pri-white b-header--white--black orb-nav-empty"> <div class="orb-nav-pri-container b-r b-g-p"> <div class="orb-nav-section orb-nav-blocks"> <a href="/web/20180213224513/http://www.bbc.co.uk/"> <img src="https://web.archive.org/web/20180213224513im_/http://static.bbci.co.uk/frameworks/barlesque/3.21.31/orb/4/img/bbc-blocks-dark.png" width="84" height="24" alt="BBC"/> </a> </div> <section> <div class="orb-skip-links"> <h2>Accessibility links</h2> <ul> <li><a id="orb-accessibility-help" href="/web/20180213224513/http://www.bbc.co.uk/accessibility/">Accessibility Help</a></li> </ul> </div> </section> <div id="mybbc-wrapper" class="orb-nav-section orb-nav-id orb-nav-focus"> <div id="idcta-statusbar" class="orb-nav-section orb-nav-focus"> <a id="idcta-link" href="https://web.archive.org/web/20180213224513/https://account.bbc.com/account?ptrt=http%3A%2F%2Fwww.bbc.co.uk%2Fcontact"> <span id="idcta-username">BBC iD</span> </a> </div> <script type="text/javascript"> require(['idcta/statusbar'], function(statusbar) { new statusbar.Statusbar({"id":"idcta-statusbar","publiclyCacheable":true}); }); </script> <a id="notification-link" class="js-notification-link animated three" href="#"> <span class="hidden-span">Notifications</span> <div class="notification-link--triangle"></div> <div class="notification-link--triangle"></div> <span id="not-num"></span> </a> </div> <nav role="navigation" class="orb-nav"> <div class="orb-nav-section orb-nav-links orb-nav-focus" id="orb-nav-links"> <h2>BBC navigation</h2> <ul> <li class="orb-nav-home orb-d"> <a href="https://web.archive.org/web/20180213224513/http://www.bbc.co.uk/">Home</a> </li> <li class="orb-nav-homedotcom orb-w"> <a href="https://web.archive.org/web/20180213224513/http://www.bbc.com/">Home</a> </li> <li class="orb-nav-news orb-d"> <a href="https://web.archive.org/web/20180213224513/http://www.bbc.co.uk/news">News</a> </li> <li class="orb-nav-newsdotcom orb-w"> <a href="https://web.archive.org/web/20180213224513/http://www.bbc.com/news">News</a> </li> <li class="orb-nav-sport"> <a href="/web/20180213224513/http://www.bbc.co.uk/sport/">Sport</a> </li> <li class="orb-nav-weather"> <a href="/web/20180213224513/http://www.bbc.co.uk/weather/">Weather</a> </li> <li class="orb-nav-shop orb-w"> <a href="https://web.archive.org/web/20180213224513/http://shop.bbc.com/">Shop</a> </li> <li class="orb-nav-earthdotcom orb-w"> <a href="https://web.archive.org/web/20180213224513/http://www.bbc.com/earth/">Earth</a> </li> <li class="orb-nav-travel-dotcom orb-w"> <a href="https://web.archive.org/web/20180213224513/http://www.bbc.com/travel/">Travel</a> </li> <li class="orb-nav-capital orb-w"> <a href="https://web.archive.org/web/20180213224513/http://www.bbc.com/capital/">Capital</a> </li> <li class="orb-nav-iplayer orb-d"> <a href="/web/20180213224513/http://www.bbc.co.uk/iplayer/">iPlayer</a> </li> <li class="orb-nav-culture orb-w"> <a href="https://web.archive.org/web/20180213224513/http://www.bbc.com/culture/">Culture</a> </li> <li class="orb-nav-autos orb-w"> <a href="https://web.archive.org/web/20180213224513/http://www.bbc.com/autos/">Autos</a> </li> <li class="orb-nav-future orb-w"> <a href="https://web.archive.org/web/20180213224513/http://www.bbc.com/future/">Future</a> </li> <li class="orb-nav-tv"> <a href="/web/20180213224513/http://www.bbc.co.uk/tv/">TV</a> </li> <li class="orb-nav-radio"> <a href="/web/20180213224513/http://www.bbc.co.uk/radio/">Radio</a> </li> <li class="orb-nav-cbbc"> <a href="/web/20180213224513/http://www.bbc.co.uk/cbbc">CBBC</a> </li> <li class="orb-nav-cbeebies"> <a href="/web/20180213224513/http://www.bbc.co.uk/cbeebies">CBeebies</a> </li> <li class="orb-nav-food"> <a href="/web/20180213224513/http://www.bbc.co.uk/food/">Food</a> </li> <li> <a href="/web/20180213224513/http://www.bbc.co.uk/iwonder">iWonder</a> </li> <li> <a href="/web/20180213224513/http://www.bbc.co.uk/education">Bitesize</a> </li> <li class="orb-nav-travel orb-d"> <a href="/web/20180213224513/http://www.bbc.co.uk/travel/">Travel</a> </li> <li class="orb-nav-music"> <a href="/web/20180213224513/http://www.bbc.co.uk/music/">Music</a> </li> <li class="orb-nav-earth orb-d"> <a href="https://web.archive.org/web/20180213224513/http://www.bbc.com/earth/">Earth</a> </li> <li class="orb-nav-arts"> <a href="/web/20180213224513/http://www.bbc.co.uk/arts/">Arts</a> </li> <li class="orb-nav-makeitdigital"> <a href="/web/20180213224513/http://www.bbc.co.uk/makeitdigital">Make It Digital</a> </li> <li> <a href="/web/20180213224513/http://www.bbc.co.uk/taster">Taster</a> </li> <li class="orb-nav-nature orb-w"> <a href="/web/20180213224513/http://www.bbc.co.uk/nature/">Nature</a> </li> <li class="orb-nav-local"> <a href="/web/20180213224513/http://www.bbc.co.uk/local/">Local</a> </li> <li class="orb-nav-tomorrowsworld orb-d"> <a href="/web/20180213224513/http://www.bbc.co.uk/tomorrowsworld">Tomorrow's World</a> </li> <li id="orb-nav-more"><a href="#orb-footer" data-alt="More">Menu<span class="orb-icon orb-icon-arrow"></span></a></li> </ul> </div> </nav> <div class="orb-nav-section orb-nav-search"> <a class="orb-search__button" href="https://web.archive.org/web/20180213224513/https://search.bbc.co.uk/search" title="Search the BBC">Search</a> <form class="b-f" id="orb-search-form" role="search" method="get" action="https://web.archive.org/web/20180213224513/https://search.bbc.co.uk/search" accept-charset="utf-8"> <div> <label for="orb-search-q">Search the BBC</label> <input id="orb-search-q" type="text" autocomplete="off" autocorrect="off" autocapitalize="off" spellcheck="false" name="q" placeholder="Search"> <button id="orb-search-button" class="orb-search__button">Search the BBC</button> <input type="hidden" name="suggid" id="orb-search-suggid"/> </div> </form> </div> </div> <div id="orb-panels"> <script type="text/template" id="orb-panel-template"><![CDATA[ <div id="orb-panel-<%= panelname %>" class="orb-panel" aria-labelledby="orb-nav-<%= panelname %>"> <div class="orb-panel-content b-g-p b-r"> <%= panelcontent %> </div> </div> ]]></script> </div> </div> </header>  <div id="orb-modules"> <div class="error" id="error-500"><h1>Sorry, the server hit a problem</h1> <p>Please try again later...</p><span></span></div> </div> <div id="orb-footer" class="orb-footer orb-footer-grey b-footer--grey--white"> <div id="navp-orb-footer-promo" class="orb-footer-grey"></div> <aside role="complementary"> <div id="orb-aside" class="orb-nav-sec b-r b-g-p"> <div class="orb-footer-inner" role="navigation"> <h2 class="orb-footer-lead">Explore the BBC</h2> <div class="orb-footer-primary-links"> <ul> <li class="orb-nav-home orb-d"> <a href="https://web.archive.org/web/20180213224513/http://www.bbc.co.uk/">Home</a> </li> <li class="orb-nav-homedotcom orb-w"> <a href="https://web.archive.org/web/20180213224513/http://www.bbc.com/">Home</a> </li> <li class="orb-nav-news orb-d"> <a href="https://web.archive.org/web/20180213224513/http://www.bbc.co.uk/news">News</a> </li> <li class="orb-nav-newsdotcom orb-w"> <a href="https://web.archive.org/web/20180213224513/http://www.bbc.com/news">News</a> </li> <li class="orb-nav-sport"> <a href="/web/20180213224513/http://www.bbc.co.uk/sport/">Sport</a> </li> <li class="orb-nav-weather"> <a href="/web/20180213224513/http://www.bbc.co.uk/weather/">Weather</a> </li> <li class="orb-nav-shop orb-w"> <a href="https://web.archive.org/web/20180213224513/http://shop.bbc.com/">Shop</a> </li> <li class="orb-nav-earthdotcom orb-w"> <a href="https://web.archive.org/web/20180213224513/http://www.bbc.com/earth/">Earth</a> </li> <li class="orb-nav-travel-dotcom orb-w"> <a href="https://web.archive.org/web/20180213224513/http://www.bbc.com/travel/">Travel</a> </li> <li class="orb-nav-capital orb-w"> <a href="https://web.archive.org/web/20180213224513/http://www.bbc.com/capital/">Capital</a> </li> <li class="orb-nav-iplayer orb-d"> <a href="/web/20180213224513/http://www.bbc.co.uk/iplayer/">iPlayer</a> </li> <li class="orb-nav-culture orb-w"> <a href="https://web.archive.org/web/20180213224513/http://www.bbc.com/culture/">Culture</a> </li> <li class="orb-nav-autos orb-w"> <a href="https://web.archive.org/web/20180213224513/http://www.bbc.com/autos/">Autos</a> </li> <li class="orb-nav-future orb-w"> <a href="https://web.archive.org/web/20180213224513/http://www.bbc.com/future/">Future</a> </li> <li class="orb-nav-tv"> <a href="/web/20180213224513/http://www.bbc.co.uk/tv/">TV</a> </li> <li class="orb-nav-radio"> <a href="/web/20180213224513/http://www.bbc.co.uk/radio/">Radio</a> </li> <li class="orb-nav-cbbc"> <a href="/web/20180213224513/http://www.bbc.co.uk/cbbc">CBBC</a> </li> <li class="orb-nav-cbeebies"> <a href="/web/20180213224513/http://www.bbc.co.uk/cbeebies">CBeebies</a> </li> <li class="orb-nav-food"> <a href="/web/20180213224513/http://www.bbc.co.uk/food/">Food</a> </li> <li> <a href="/web/20180213224513/http://www.bbc.co.uk/iwonder">iWonder</a> </li> <li> <a href="/web/20180213224513/http://www.bbc.co.uk/education">Bitesize</a> </li> <li class="orb-nav-travel orb-d"> <a href="/web/20180213224513/http://www.bbc.co.uk/travel/">Travel</a> </li> <li class="orb-nav-music"> <a href="/web/20180213224513/http://www.bbc.co.uk/music/">Music</a> </li> <li class="orb-nav-earth orb-d"> <a href="https://web.archive.org/web/20180213224513/http://www.bbc.com/earth/">Earth</a> </li> <li class="orb-nav-arts"> <a href="/web/20180213224513/http://www.bbc.co.uk/arts/">Arts</a> </li> <li class="orb-nav-makeitdigital"> <a href="/web/20180213224513/http://www.bbc.co.uk/makeitdigital">Make It Digital</a> </li> <li> <a href="/web/20180213224513/http://www.bbc.co.uk/taster">Taster</a> </li> <li class="orb-nav-nature orb-w"> <a href="/web/20180213224513/http://www.bbc.co.uk/nature/">Nature</a> </li> <li class="orb-nav-local"> <a href="/web/20180213224513/http://www.bbc.co.uk/local/">Local</a> </li> <li class="orb-nav-tomorrowsworld orb-d"> <a href="/web/20180213224513/http://www.bbc.co.uk/tomorrowsworld">Tomorrow's World</a> </li> </ul> </div> </div> </div> </aside> <footer role="contentinfo"> <div id="orb-contentinfo" class="orb-nav-sec b-r b-g-p"> <div class="orb-footer-inner"> <ul> <li> <a href="/web/20180213224513/http://www.bbc.co.uk/terms/">Terms of Use</a> </li> <li> <a href="/web/20180213224513/http://www.bbc.co.uk/aboutthebbc/">About the BBC</a> </li> <li> <a href="/web/20180213224513/http://www.bbc.co.uk/privacy/">Privacy Policy</a> </li> <li> <a href="/web/20180213224513/http://www.bbc.co.uk/privacy/cookies/about">Cookies</a> </li> <li> <a href="/web/20180213224513/http://www.bbc.co.uk/accessibility/">Accessibility Help</a> </li> <li> <a href="/web/20180213224513/http://www.bbc.co.uk/guidance/">Parental Guidance</a> </li> <li> <a href="/web/20180213224513/http://www.bbc.co.uk/contact/">Contact the BBC</a> </li> <li> <a href="/web/20180213224513/http://www.bbc.co.uk/bbcnewsletter">Get Personalised Newsletters</a> </li> <li class=" orb-w"> <a href="https://web.archive.org/web/20180213224513/http://advertising.bbcworldwide.com/">Advertise with us</a> </li> <li class=" orb-w"> <a href="/web/20180213224513/http://www.bbc.co.uk/privacy/cookies/international/">Ad choices</a> </li> </ul> <small> <span class="orb-hilight">Copyright © 2018 BBC.</span> The BBC is not responsible for the content of external sites. <a href="/web/20180213224513/http://www.bbc.co.uk/help/web/links/" class="orb-hilight">Read about our approach to external linking.</a> </small> </div> </div> </footer> </div> <div class="bbccom_display_none"><script type="text/javascript"> /*<![CDATA[*/ if (window.bbcdotcom && window.bbcdotcom.analytics && bbcdotcom.config && !bbcdotcom.config.isSportApp()) { bbcdotcom.analytics.page(); } /*]]>*/ </script><noscript><img src="//web.archive.org/web/20180213224513im_/http://ssc.api.bbc.com/?c1=2&c2=19293874&ns_site=bbc&name=" height="1" width="1" alt=""></noscript><script type="text/javascript"> /*<![CDATA[*/ if (window.bbcdotcom && bbcdotcom.currencyProviders) { bbcdotcom.currencyProviders.write(); } /*]]>*/ </script><script type="text/javascript"> /*<![CDATA[*/ if (window.bbcdotcom && bbcdotcom.currencyProviders) { bbcdotcom.currencyProviders.postWrite(); } /*]]>*/ </script><script type="text/javascript"> /*<![CDATA[*/ if (window.bbcdotcom && bbcdotcom.data && bbcdotcom.data.stats && bbcdotcom.data.stats == 1 && bbcdotcom.config && bbcdotcom.config.isLotameEnabled && bbcdotcom.config.isLotameEnabled() && bbcdotcom.lotame){ bbcdotcom.lotame.write(); } /*]]>*/ </script><script type="text/javascript"> /*<![CDATA[*/ if (window.bbcdotcom && bbcdotcom.data && bbcdotcom.data.stats && bbcdotcom.data.stats === 1 && bbcdotcom.utils && window.location.pathname === '/' && window.bbccookies && bbccookies.readPolicy('performance') ) { var wwhpEdition = bbcdotcom.utils.getMetaPropertyContent('wwhp-edition'); var _sf_async_config={}; /** CONFIGURATION START **/ _sf_async_config.uid = 50924; _sf_async_config.domain = "bbc.co.uk"; _sf_async_config.title = "Homepage"+(wwhpEdition !== '' ? ' - '+wwhpEdition : ''); _sf_async_config.sections = "Homepage"+(wwhpEdition !== '' ? ', Homepage - '+wwhpEdition : ''); _sf_async_config.region = wwhpEdition; _sf_async_config.path = "/"+(wwhpEdition !== '' ? '?'+wwhpEdition : ''); /** CONFIGURATION END **/ (function(){ function loadChartbeat() { window._sf_endpt=(new Date()).getTime(); var e = document.createElement("script"); e.setAttribute("language", "javascript"); e.setAttribute("type", "text/javascript"); e.setAttribute('src', '//web.archive.org/web/20180213224513/http://static.chartbeat.com/js/chartbeat.js'); document.body.appendChild(e); } var oldonload = window.onload; window.onload = (typeof window.onload != "function") ? loadChartbeat : function() { oldonload(); loadChartbeat(); }; })(); } /*]]>*/ </script><script type="text/javascript"> /*<![CDATA[*/ (function() { window.bbcdotcom.bodyLast = true; }()); /*]]>*/ </script></div> <script type="text/javascript" id="orb-js-script" data-assetpath="http://static.bbci.co.uk/frameworks/barlesque/3.21.31/orb/4/" src="https://web.archive.org/web/20180213224513js_/http://static.bbci.co.uk/frameworks/barlesque/3.21.31/orb/4/script/orb.min.js"></script> <script type="text/javascript"> (function() { 'use strict'; var promoManager = { url: '', promoLoaded: false, makeUrl: function (theme, site, win) { var loc = win? win.location : window.location, proto = loc.protocol, host = loc.host, url = proto + '//' + ((proto.match(/s:/i) && !host.match(/^www\.(int|test)\./i))? 'ssl.' : 'www.'), themes = ['light', 'dark']; if ( host.match(/^(?:www|ssl|m)\.(int|test|stage|live)\.bbc\./i) ) { url += RegExp.$1 + '.'; } else if ( host.match(/^pal\.sandbox\./i) ) { url += 'test.'; } theme = themes[ +(theme === themes[0]) ]; return url + 'bbc.co.uk/navpromo/card/' + site + '/' + theme; }, init: function(node) { var disabledByCookie = (document.cookie.indexOf('ckns_orb_nopromo=1') > -1), that = this; if (window.promomanagerOverride) { for (var p in promomanagerOverride) { that[p] = promomanagerOverride[p]; } } if ( window.orb.fig('uk') && !disabledByCookie ) { require(['orb/async/_footerpromo', 'istats-1'], function(promo, istats) { var virtualSite = istats.getSite() || 'default'; that.url = (window.promomanagerOverride || that).makeUrl('light', virtualSite); if (that.url) { promo.load(that.url, node, { onSuccess: function(e) { if(e.status === 'success') { node.parentNode.className = node.parentNode.className + ' orb-footer-promo-loaded'; promoManager.promoLoaded = true; promoManager.event('promo-loaded').fire(e); } }, onError: function() { istats.log('error', 'orb-footer-promo-failed'); bbccookies.set('ckns_orb_nopromo=1; expires=' + new Date(new Date().getTime() + 1000 * 60 * 10).toGMTString() + ';path=/;'); } }); } }); } } }; define('orb/promomanager', ['orb/lib/_event'], function (event) { event.mixin(promoManager); return promoManager; }); require(['orb/promomanager'], function (promoManager) { promoManager.init(document.getElementById('navp-orb-footer-promo')); }) })(); </script> <script type="text/javascript"> require.config({ paths: { "mybbc/templates": '//web.archive.org/web/20180213224513/http://mybbc.files.bbci.co.uk/notification-ui/3.8.4/templates', "mybbc/notifications": '//web.archive.org/web/20180213224513/http://mybbc.files.bbci.co.uk/notification-ui/3.8.4/js' } }); require(['mybbc/notifications/NotificationsMain', 'idcta/idcta-1'], function (NotificationsMain, idcta) { var loadNotifications = function (fig) { if (fig.geo.isUK()) { NotificationsMain.run(idcta, '//web.archive.org/web/20180213224513/http://mybbc.files.bbci.co.uk/notification-ui/3.8.4/'); } }; var orbFig = window.orb.fig; if (typeof orbFig.load === 'function') { // Use new async API from Orbit orbFig.load(loadNotifications, loadNotifications); } else { // Use old sync-only API from PAL orbfig project loadNotifications(orbFig); } }); </script> <script type="text/javascript"> if (typeof require !== 'undefined') { require(['istats-1'], function(istats){ istats.track('external', { region: document.getElementsByTagName('body')[0] }); istats.track('download', { region: document.getElementsByTagName('body')[0] }); }); } </script> <script type="text/javascript"> if (window.SEARCHBOX.suppress === false && window.SEARCHBOX.locale && /^en-?.*?/.test(window.SEARCHBOX.locale)) { require.config({ paths: { "search/searchbox": window.SEARCHBOX.searchboxAppStaticPrefix, "disco-layer": "//web.archive.org/web/20180213224513/http://nav.files.bbci.co.uk/discovery-layer/0.0.1-225.3e98a7a/app" } }); require(['search/searchbox/searchboxDrawer'], function (SearchboxDrawer) { SearchboxDrawer.run(window.SEARCHBOX); }); var loadDiscoveryLayer = function (fig) { if (fig.geo.isUK()) { require(['disco-layer'], function (discoLayer) { discoLayer.run("//web.archive.org/web/20180213224513/http://nav.files.bbci.co.uk/discovery-layer/content/", "//web.archive.org/web/20180213224513/http://nav.files.bbci.co.uk/discovery-layer/0.0.1-225.3e98a7a/main.css"); }); } }; var orbFig = window.orb.fig; if (typeof orbFig.load === 'function') { // Use new async API from Orbit orbFig.load(loadDiscoveryLayer); } else { // Use old sync-only API from PAL orbfig project loadDiscoveryLayer(orbFig); } } </script> <script type="text/javascript">require(["megavolt-client","istats-1","orb/cookies"],function(t,e,i){function o(){return"true"===l&&a&&t&&"function"==typeof t.getMVTIStatsLabels}function n(){!c&&o()?setTimeout(function(){e.invoke()},"500"):e.invoke()}var s=navigator.userAgent.toLowerCase(),a=!(s.indexOf("msie")>-1)||parseInt(s.split("msie")[1],10)>10,c=!1,l="true";if(i.isAllowed("s1"))try{if(o()&&t.getMVTIStatsLabels(function(t){e.addLabels(t),c=!0}),!require.s.contexts._.config.paths.idcta)return void n();require(["idcta/idcta-1"],function(t){t&&"function"==typeof t.getIStatsLabels&&e.addLabels(t.getIStatsLabels()),n()},function(t){throw t})}catch(t){console&&"function"==typeof console.log&&console.log("an exception occurred while adding idcta labels to istats, invoking istats without them",t),n()}});</script> </body> </html>