GW2 - EU Instance checker

by KoxAlen

HTML

<input type="button" name="EUregion" value="Europe" onclick="setRegion('eu');" />
<input type="button" name="NAregion" value="North America" onclick="setRegion('na');" />
<p id="cofHeader">CoF is open on the following
    <spam class="region">european</spam> servers:</p>
<div id="cofservers"></div>
<hr />
<p id="coeHeader">CoE is open on the following
    <spam class="region">european</spam> servers:</p>
<div id="coeservers"></div>
<input type="button" name="reload" value="Reload" onclick="populateServers();" />
<p><a href="http://redd.it/1ettwd">Feedback and suggestions</a></p>

JavaScript

var API_EVENTS = "https://api.guildwars2.com/v1/events.json";
var COF_EVENT = {
    "map_id": 22,
        "event_id": "A1182080-2599-4ACC-918E-A3275610602B"
};
var COE_EVENT = {
    "map_id": 39,
        "event_id": "9752677E-FAE7-4F56-A48A-275329095B8A"
};
var worldDict = {
    "2201": "Kodash [DE]",
        "2202": "Riverside [DE]",
        "2203": "Elona Reach [DE]",
        "2204": "Abaddon's Mouth [DE]",
        "2205": "Drakkar Lake [DE]",
        "2206": "Miller's Sound [DE]",
        "2207": "Dzagonur [DE]",
        "2014": "Gunnar's Hold",
        "2011": "Vabbi",
        "2010": "Seafarer's Rest",
        "2013": "Aurora Glade",
        "2012": "Piken Square",
        "1024": "Eredon Terrace",
        "1021": "Dragonbrand",
        "1020": "Ferguson's Crossing",
        "1023": "Devona's Rest",
        "1022": "Kaineng",
        "2103": "Augury Rock [FR]",
        "2102": "Fort Ranik [FR]",
        "2101": "Jade Sea [FR]",
        "2105": "Arborstone [FR]",
        "2104": "Vizunah Square [FR]",
        "2301": "Baruch Bay [SP]",
        "1018": "Northern Shiverpeaks",
        "1019": "Blackgate",
        "1014": "Crystal Desert",
        "1015": "Isle of Janthir",
        "1016": "Sea of Sorrows",
        "1017": "Tarnished Coast",
        "1010": "Ehmry Bay",
        "1011": "Stormbluff Isle",
        "1012": "Darkhaven",
        "1013": "Sanctum of Rall",
        "1009": "Fort Aspenwood",
        "1008": "Jade Quarry",
        "1005": "Maguuma",
        "2009": "Ruins of Surmia",
        "2002": "Desolation",
        "2003": "Gandara",
        "2001": "Fissure of Woe",
        "2006": "Underworld",
        "2007": "Far Shiverpeaks",
        "2004": "Blacktide",
        "2005": "Ring of Fire",
        "1007": "Gate of Madness",
        "1006": "Sorrow's Furnace",
        "2008": "Whiteside Ridge",
        "1004": "Henge of Denravi",
        "1003": "Yak's Bend",
        "1002": "Borlis Pass",
        "1001": "Anvil Rock"
};
var region = 'eu';
var...