gloader.load(["glow","1","glow.dom"],{onLoad:function(glow){BBC.adverts=function(){var UNDEFINED="undefined",KEY_VALUES="keyValues",DEFAULT_TILE=0,EMPTY="",SLASH="/",SEMI=";",EQUALS="=",DISPLAY_NONE="bbccom_display_none",SCRIPT_START='<script type="text/javascript" src="',SCRIPT_END='"><\/script>',SCRIPT_ROOT="http://news.bbcimg.co.uk/js/app/bbccom/7/",JS=".js",LOCATION="location",DOMAIN="domain",ADS_BLOCKED=false,ZONE_VERSION="zoneVersion",ZONE_OVERRIDE="zoneOverride",REFERRER="zoneReferrer",YES="yes",NO="no",ID_START="bbccom_",BBC_ORD="&ord=",DC_BASE="http://ad.doubleclick.net/adj/",DC_BASE_COMPANION="http://ad.doubleclick.net/pfadx/bbccom.live.site.news/;tile=6;sz=512x288;dcgzip=0",DC_PREROLL_BASE="http://ad.doubleclick.net/pfadx/",DC_SLOT=";slot=",DC_SZ=";sz=",DC_TILE=";tile=",DC_ORD=";ord=",DC_END="?",BODY_CLASS_PREFIX="bbccom_slot_",AD_LABEL='<div class="bbccom_text"><a href="http://faq.external.bbc.co.uk/questions/bbc_online/adverts_general">Advertisement</a></div>',AD_INFO={leaderboard:{size:"728x90,970x66"},skyscraper:{size:"120x600,160x600"},bottom:{size:"468x60"},mpu250x250:{size:"250x250"},mpu:{size:"300x250"},mpu600:{size:"200x600"},button:{size:"120x240"},companion:{size:"512x288"},storyprintsponsorship:{size:"88x31"},printableversionsponsorship:{size:"120x60"},sponsor_1:{size:"88x31"},sponsor_2:{size:"88x31"},sponsor_3:{size:"88x31"},sponsor_4:{size:"88x31"},sponsor_section:{size:"88x31"},sponsor_section_news:{size:"88x31"},partner_button1:{size:"120x30"},partner_button2:{size:"120x30"},partner_button3:{size:"120x30"},partner_button4:{size:"120x30"},partner_button5:{size:"120x30"},partner_button6:{size:"120x30"},partner_button7:{size:"120x30"},partner_button8:{size:"120x30"},module:{size:"88x31"},module_0004l:{size:"88x31"},module_0000o:{size:"88x31"},module_0000p:{size:"88x31"},module_000zb:{size:"88x31"},module_000yy:{size:"88x31"},module_0000q:{size:"88x31"},module_000kc:{size:"88x31"},module_0000s:{size:"88x31"},module_0005f:{size:"88x31"},module_00094:{size:"88x31"},module_0000u:{size:"88x31"},module_000e6:{size:"88x31"},module_0000y:{size:"88x31"},module_000ks:{size:"88x31"},module_000ji:{size:"88x31"},module_000ip:{size:"88x31"},module_0000x:{size:"88x31"},module_000p1:{size:"88x31"},module_000cm:{size:"88x31"},module_a:{size:"88x31"},module_b:{size:"88x31"},module_c:{size:"88x31"},module_d:{size:"88x31"},module_e:{size:"88x31"},module_f:{size:"88x31"},module_g:{size:"88x31"},module_h:{size:"88x31"},module_i:{size:"88x31"},module_j:{size:"88x31"},module_k:{size:"88x31"},module_l:{size:"88x31"},module_m:{size:"88x31"},module_n:{size:"88x31"},module_o:{size:"88x31"},module_p:{size:"88x31"},module_q:{size:"88x31"},module_r:{size:"88x31"},module_s:{size:"88x31"},module_t:{size:"88x31"},module_u:{size:"88x31"},module_v:{size:"88x31"},module_w:{size:"88x31"},module_x:{size:"88x31"},module_y:{size:"88x31"},module_z:{size:"88x31"}};var ord=EMPTY,config={},zoneData={},ordLength=14,pageVersion=undefined,SITEVERSION="4",cssPostFix=["_v4","_v3_5","_v3"],mastHeadPresent=false;while(ordLength--){ord+=(Math.floor(Math.random()*10));}var getCustomKeyValues=function(slot){var customKeyValues=[];var len=0;if(zoneData.keyValues){for(var key in zoneData.keyValues){customKeyValues[len]=SEMI;customKeyValues[len+1]=key;customKeyValues[len+2]=EQUALS;customKeyValues[len+3]=zoneData.keyValues[key];len+=4;}}if(zoneData.domValues){for(var domKey in zoneData.domValues){var domValue=glow.dom.get(zoneData.domValues[domKey]);if("undefined"!==typeof(domValue[0])){customKeyValues[len]=SEMI;customKeyValues[len+1]=domKey;customKeyValues[len+2]=EQUALS;customKeyValues[len+3]=escape(domValue[0].innerHTML.split(" ").join("_"));len+=4;}}}return customKeyValues.join(EMPTY);};var incrementTile=function(){DEFAULT_TILE++;return DEFAULT_TILE;};var getAdvertTag=function(slot){var slot_size=getAdvertSize(slot);if(slot=="companion"){return[DC_PREROLL_BASE,zoneData.site,SLASH,zoneData.zone,getCustomKeyValues(slot),DC_SLOT,slot,DC_SZ,slot_size,DC_TILE,incrementTile()].join(EMPTY);}else{return[SCRIPT_START,DC_BASE,zoneData.site,SLASH,zoneData.zone,getCustomKeyValues(slot),DC_SLOT,slot,DC_SZ,slot_size,DC_TILE,incrementTile(),DC_ORD,ord,DC_END,SCRIPT_END].join(EMPTY);}};var hide=function(slot){config[slot]=NO;document.getElementById(ID_START+slot).className=DISPLAY_NONE;};var loadZonefile=function(){var src=config[ZONE_OVERRIDE]===true?config[ZONE_VERSION]:SCRIPT_ROOT+config[ZONE_VERSION]+JS;var str=[SCRIPT_START,src,SCRIPT_END].join(EMPTY);document.write(str);};var getAdvertSize=function(slot){if(!zoneData.slotSize||(typeof(zoneData.slotSize[slot])=="undefined")){return AD_INFO[slot].size;}else{return zoneData.slotSize[slot];}};var configure=function(data){for(var id in data){config[id]=data[id];}};return{init:function(data){configure(data);loadZonefile();},setAdsBlocked:function(adsBlocked){ADS_BLOCKED=adsBlocked;},getConfig:function(key){return config[key];},getZoneData:function(){return zoneData;},getAdvertTag:function(slot){return getAdvertTag(slot);},getMetaData:function(zoneMeta){var meta_object,meta_value,meta_data={};for(var i=0;i<zoneMeta.length;i++){if((meta_object=window[ID_START+zoneMeta[i]])){for(var key in meta_object){meta_value=escape(meta_object[key].replace(/\s+/g,""));if(meta_value.length>0&&meta_value.length<=64){meta_data[zoneMeta[i]+"_"+key]=meta_value;}}}}return meta_data;},setZone:function(zones){var url=config[LOCATION];var site=config[DOMAIN];var referrer=config[REFERRER];var data={keyValues:{}};var process=function(base,level){for(var key in level.data){if(key===KEY_VALUES){for(var kw in level.data.keyValues){data.keyValues[kw]=level.data.keyValues[kw];}}else{data[key]=level.data[key];}}if(level.zones){var ct=level.zones.length;while(ct--){if(url.indexOf(base+level.zones[ct].uri)!==-1){return process(base+level.zones[ct].uri,level.zones[ct]);}}}return data;};if(site.indexOf(".external.")!==-1){url="/"+site+url;}else{if(site.indexOf("www.bbcearth.com")!==-1){url="/"+site+url;}else{if((url=="/")||url.indexOf("/internationalhomepage/")!==-1){url="/home/";}}}zoneData=zones.process(process(EMPTY,zones.zones),site,url,referrer);},write:function(slot,showLabel){if(ADS_BLOCKED===false&&zoneData.ads){if((!zoneData.slots||(zoneData.slots[slot]!=false))&&config[slot]!==NO){config[slot]=YES;glow.dom.get("body").addClass(BODY_CLASS_PREFIX+slot);if(showLabel||typeof(showLabel)=="undefined"){document.write(AD_LABEL+getAdvertTag(slot));}else{document.write(getAdvertTag(slot));}}else{hide(slot);}}else{hide(slot);}},checkWrite:function(slot){if(ADS_BLOCKED===false&&zoneData.ads){if((!zoneData.slots||(zoneData.slots[slot]!=false))&&config[slot]!==NO){config[slot]=YES;return true;}else{hide(slot);}return false;}else{hide(slot);}return false;},writeAttr:function(elementAttr,elementId){if(ADS_BLOCKED===false&&zoneData.ads){if(!zoneData.styles||(typeof(zoneData.styles[elementId])=="undefined")){return false;}return zoneData.styles[elementId][elementAttr];}return false;},hasStyles:function(){if(!zoneData.styles||(typeof(zoneData.styles)=="undefined")){return false;}return true;},show:function(slot,companionId,newClass){if(config[slot]===YES){if(mastHeadPresent&&pageVersion===SITEVERSION){newClass=slot+cssPostFix[0];}else{if(mastHeadPresent&&pageVersion!==SITEVERSION){newClass=slot+cssPostFix[1];}else{newClass=slot+cssPostFix[2];}}var id;if(companionId==undefined){id=ID_START+slot;}else{id=companionId;}if("bbccom_visibility_show"!=document.getElementById(id).className){document.getElementById(id).className=document.getElementById(id).className.replace(DISPLAY_NONE,"")+" "+newClass;}else{document.getElementById(id).className=document.getElementById(id).className+" "+newClass;}var regMatch=slot.match(/^module_([a-z]+)$/);if(regMatch&&document.getElementById(ID_START+id)!=null){document.getElementById(ID_START+id).className="bbccom_module";}return true;}return false;},close:function(slot){config[slot]=NO;glow.dom.get("body").removeClass(BODY_CLASS_PREFIX+slot);var adHideClass;switch(slot){case"leaderboard":adHideClass="bbcdotcomAdvertsResetTop";break;case"bottom":adHideClass="bbcdotcomAdvertsResetBottom";break;case"mpu":adHideClass="bbcdotcomAdvertsResetMpu";break;default:adHideClass="";}glow.dom.get("body").addClass(adHideClass);},setPageVersion:function(version){mastHeadPresent=true;if(version==="4"){pageVersion=version;}},empCompanion:function(){var prerollURL=getAdvertTag("companion");return prerollURL;},empCompanionResponse:function(src,companionId){if(companionId==undefined){companionId="bbccom_companion";}var slot="companion";config[slot]=YES;var companionHolderDiv=document.createElement("div");companionHolderDiv.setAttribute("class","comp_banner_holder");var companionHolder=document.createElement("iframe");companionHolder.setAttribute("width","300");companionHolder.setAttribute("height","100%");companionHolder.setAttribute("align","left");companionHolder.setAttribute("scrolling","no");companionHolder.setAttribute("frameBorder","no");companionHolder.setAttribute("src",src);var parentDiv=document.getElementById(companionId);parentDiv.className="bbccom_visibility_show";companionHolderDiv.appendChild(companionHolder);parentDiv.appendChild(companionHolderDiv);var compidarg;if(companionId!="bbccom_companion"){compidarg=companionId;}this.show(slot,compidarg);},setScriptRoot:function(scriptRoot){SCRIPT_ROOT=scriptRoot;}};}();}});