--- a/coffee/register.coffee	Sat Mar 19 10:46:01 2016 +0800
+++ b/coffee/register.coffee	Sun Mar 20 11:43:20 2016 +0800
@@ -1,7 +1,3 @@
-domain = location.hostname
-conn = new Strophe.Connection "https://#{ location.host }/http-bind"
-
-
 onConnect = (status, error) ->
   switch status
     when Strophe.Status.CONNECTING
@@ -96,7 +92,8 @@
   savevCard: savevCard
 
 
-conn.register.connect domain, onConnect
+conn = new Strophe.Connection "https://#{ Tram.config.host }/http-bind"
+conn.register.connect Tram.config.domain, onConnect
 
 
 $('#register').on 'click', ->

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/coffee/tram.coffee	Sun Mar 20 11:43:20 2016 +0800
@@ -0,0 +1,4 @@
+window.Tram =
+  config:
+    host: location.host
+    domain: location.hostname

--- a/js/register.js	Sat Mar 19 10:46:01 2016 +0800
+++ b/js/register.js	Sun Mar 20 11:43:20 2016 +0800
@@ -1,10 +1,6 @@
 // Generated by CoffeeScript 1.10.0
 (function() {
-  var conn, domain, onConnect, savevCard;
-
-  domain = location.hostname;
-
-  conn = new Strophe.Connection("https://" + location.host + "/http-bind");
+  var conn, onConnect, savevCard;
 
   onConnect = function(status, error) {
     switch (status) {
@@ -90,7 +86,9 @@
     savevCard: savevCard
   });
 
-  conn.register.connect(domain, onConnect);
+  conn = new Strophe.Connection("https://" + Tram.config.host + "/http-bind");
+
+  conn.register.connect(Tram.config.domain, onConnect);
 
   $('#register').on('click', function() {
     var ok;

--- a/js/register.js.map	Sat Mar 19 10:46:01 2016 +0800
+++ b/js/register.js.map	Sun Mar 20 11:43:20 2016 +0800
@@ -6,5 +6,5 @@
     "coffee/register.coffee"
   ],
   "names": [],
-  "mappings": 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De,CAAjB;AA9JA"
+  "mappings": ";AAAA;AAAA,MAAA;;EAAA,SAAA,GAAY,SAAC,MAAD,EAAS,KAAT;AACV,YAAO,MAAP;AAAA,WACO,OAAO,CAAC,MAAM,CAAC,UADtB;eAEI,OAAO,CAAC,KAAR,CAAc,wBAAd;AAFJ,WAIO,OAAO,CAAC,MAAM,CAAC,cAJtB;eAKI,OAAO,CAAC,KAAR,CAAc,4BAAd;AALJ,WAOO,OAAO,CAAC,MAAM,CAAC,QAPtB;eAQI,OAAO,CAAC,KAAR,CAAc,iCAAd,EAAiD,KAAjD;AARJ,WAUO,OAAO,CAAC,MAAM,CAAC,KAVtB;eAWI,OAAO,CAAC,KAAR,CAAc,4BAAd,EAA4C,KAA5C;AAXJ,WAaO,OAAO,CAAC,MAAM,CAAC,QAbtB;eAcI,OAAO,CAAC,KAAR,CAAc,4BAAd,EAA4C,KAA5C;AAdJ,WAgBO,OAAO,CAAC,MAAM,CAAC,aAhBtB;eAiBI,OAAO,CAAC,KAAR,CAAc,2BAAd;AAjBJ,WAmBO,OAAO,CAAC,MAAM,CAAC,YAnBtB;eAoBI,OAAO,CAAC,KAAR,CAAc,0BAAd;AApBJ,WAsBO,OAAO,CAAC,MAAM,CAAC,SAtBtB;QAuBI,OAAO,CAAC,KAAR,CAAc,uBAAd;QACA,OAAO,CAAC,IAAR,CAAa,SAAb,EAAwB,IAAI,CAAC,GAA7B;eACA,CAAC,CAAC,OAAF,CAAU,SAAV;AAzBJ,WA2BO,OAAO,CAAC,MAAM,CAAC,QA3BtB;QA4BI,OAAO,CAAC,KAAR,CAAc,yBAAd;eACA,CAAC,CAAC,OAAF,CAAU,SAAV;AA7BJ,WA+BO,OAAO,CAAC,MAAM,CAAC,UA/BtB;QAgCI,OAAO,CAAC,KAAR,CAAc,aAAd;QACA,CAAC,CAAC,OAAF,CAAU,QAAV;eACA,IAAI,CAAC,YAAL,CAAA;AAlCJ,WAoCO,OAAO,CAAC,MAAM,CAAC,QApCtB;QAqCI,OAAO,CAAC,KAAR,CAAc,yBAAd;eACA,CAAC,CAAC,OAAF,CAAU,YAAV;AAtCJ,WAwCO,OAAO,CAAC,MAAM,CAAC,aAxCtB;QAyCI,OAAO,CAAC,KAAR,CAAc,4CAAd;eACA,CAAC,CAAC,OAAF,CAAU,UAAV;AA1CJ,WA4CO,OAAO,CAAC,MAAM,CAAC,QA5CtB;QA6CI,OAAO,CAAC,KAAR,CAAc,kDAAd;eACA,CAAC,CAAC,OAAF,CAAU,UAAV;AA9CJ;EADU;;EAkDZ,SAAA,GAAY,SAAC,IAAD;AACV,QAAA;IAAA,MAAA,GAAS,GAAA,CAAI;MAAC,IAAA,EAAM,KAAP;KAAJ,CAAkB,CAAC,CAAnB,CAAqB,OAArB,EAA8B;MAAC,KAAA,EAAO,OAAO,CAAC,EAAE,CAAC,KAAnB;KAA9B;IAET,IAAG,IAAI,CAAC,QAAR;MACE,MAAM,CAAC,CAAP,CAAS,UAAT,CAAoB,CAAC,CAArB,CAAuB,IAAI,CAAC,QAA5B,CAAqC,CAAC,EAAtC,CAAA,EADF;;IAGA,IAAG,IAAI,CAAC,QAAR;MACE,MAAM,CAAC,CAAP,CAAS,IAAT,CAAc,CAAC,CAAf,CAAiB,IAAI,CAAC,QAAtB,CAA+B,CAAC,EAAhC,CAAA,EADF;;IAGA,IAAG,IAAI,CAAC,MAAR;MACE,CAAA,GAAI;MACJ,CAAA,GAAI;MACJ,EAAA,GAAK,CAAC,CAAC;MACP,EAAA,GAAK,CAAC,CAAC;MACP,EAAA,GAAK,IAAI,CAAC,MAAM,CAAC,OAAZ,CAAoB,CAApB;MACL,IAAA,GAAO,IAAI,CAAC,MAAM,CAAC,MAAZ,CAAmB,EAAnB,EAAuB,EAAA,GAAK,EAA5B;MACP,MAAA,GAAS,IAAI,CAAC,MAAM,CAAC,MAAZ,CAAmB,EAAA,GAAK,EAAxB;MAET,MAAM,CAAC,CAAP,CAAS,OAAT,CACM,CAAC,CADP,CACS,MADT,CACgB,CAAC,CADjB,CACmB,IADnB,CACwB,CAAC,EADzB,CAAA,CAEM,CAAC,CAFP,CAES,QAFT,CAEkB,CAAC,CAFnB,CAEqB,MAFrB,EATF;;IAaA,IAAA,GAAO,SAAA;MACL,OAAO,CAAC,KAAR,CAAc,eAAd,EAA+B,SAA/B;aACA,CAAC,CAAC,OAAF,CAAU,QAAV;IAFK;IAIP,MAAA,GAAS,SAAA;MACP,OAAO,CAAC,IAAR,CAAa,mBAAb,EAAkC,SAAlC;aACA,CAAC,CAAC,OAAF,CAAU,UAAV;IAFO;WAIT,IAAI,CAAC,MAAL,CAAY,MAAM,CAAC,IAAP,CAAA,CAAZ,EAA2B,IAA3B,EAAiC,MAAjC;EA9BU;;EAiCZ,MAAM,CAAC,CAAP,GAAW,CAAC,CAAC,KAAF,CAAQ,QAAQ,CAAC,MAAjB;;EAGX,CAAA,CAAE,CAAF,CAAI,CAAC,MAAL,CACE;IAAA,QAAA,EAAU,SAAC,QAAD,EAAW,QAAX;MACR,IAAI,CAAC,QAAQ,CAAC,MAAM,CAAC,QAArB,GAAgC;MAChC,IAAI,CAAC,QAAQ,CAAC,MAAM,CAAC,QAArB,GAAgC;aAChC,IAAI,CAAC,QAAQ,CAAC,MAAd,CAAA;IAHQ,CAAV;IAIA,SAAA,EAAW,SAJX;GADF;;EAQA,IAAA,GAAW,IAAA,OAAO,CAAC,UAAR,CAAmB,UAAA,GAAY,IAAI,CAAC,MAAM,CAAC,IAAxB,GAA8B,YAAjD;;EACX,IAAI,CAAC,QAAQ,CAAC,OAAd,CAAsB,IAAI,CAAC,MAAM,CAAC,MAAlC,EAA0C,SAA1C;;EAGA,CAAA,CAAE,WAAF,CAAc,CAAC,EAAf,CAAkB,OAAlB,EAA2B,SAAA;AACzB,QAAA;IAAA,EAAA,GAAK;IACL,UAAU,CAAC,UAAX,CAAsB,CAAA,CAAE,mCAAF,CAAtB;IACA,EAAA,IAAM,UAAU,CAAC,gBAAX,CAA4B,CAAA,CAAE,WAAF,CAA5B,EAA4C,IAA5C;IACN,EAAA,IAAM,UAAU,CAAC,iBAAX,CAA6B,CAAA,CAAE,YAAF,CAA7B,EAA8C,CAAA,CAAE,YAAF,CAA9C;IACN,EAAA,IAAM,UAAU,CAAC,gBAAX,CAA4B,CAAA,CAAE,YAAF,CAA5B;IACN,EAAA,IAAM,UAAU,CAAC,gBAAX,CAA4B,CAAA,CAAE,YAAF,CAA5B;IACN,IAAG,EAAH;aACE,CAAC,CAAC,QAAF,CAAW,CAAA,CAAE,WAAF,CAAc,CAAC,GAAf,CAAA,CAAoB,CAAC,IAArB,CAAA,CAAX,EAAwC,CAAA,CAAE,YAAF,CAAe,CAAC,GAAhB,CAAA,CAAxC,EADF;;EAPyB,CAA3B;;EAWA,CAAA,CAAE,OAAF,CAAU,CAAC,EAAX,CAAc,OAAd,EAAuB,SAAA;AACrB,QAAA;IAAA,IAAA,GAAO,CAAA,CAAE,SAAF,CAAY,CAAC,GAAb,CAAiB,CAAjB,CAAmB,CAAC,KAAM,CAAA,CAAA;IACjC,IAAG,IAAH;MACE,MAAA,GAAa,IAAA,UAAA,CAAA;MACb,MAAM,CAAC,SAAP,GAAmB,SAAA;eACjB,CAAC,CAAC,SAAF,CACE;UAAA,QAAA,EAAU,CAAA,CAAE,WAAF,CAAc,CAAC,GAAf,CAAA,CAAV;UACA,QAAA,EAAU,CAAA,CAAE,WAAF,CAAc,CAAC,GAAf,CAAA,CADV;UAEA,MAAA,EAAQ,IAAC,CAAA,MAFT;SADF;MADiB;aAKnB,MAAM,CAAC,aAAP,CAAqB,IAArB,EAPF;KAAA,MAAA;aASE,CAAC,CAAC,SAAF,CACE;QAAA,QAAA,EAAU,CAAA,CAAE,WAAF,CAAc,CAAC,GAAf,CAAA,CAAV;QACA,QAAA,EAAU,CAAA,CAAE,WAAF,CAAc,CAAC,GAAf,CAAA,CADV;OADF,EATF;;EAFqB,CAAvB;;EAgBA,CAAC,CAAC,EAAF,CAAK,SAAL,EAAgB,SAAA;WACd,CAAA,CAAE,4BAAF,CAA+B,CAAC,WAAhC,CAA4C,WAA5C;EADc,CAAhB;;EAIA,CAAC,CAAC,EAAF,CAAK,QAAL,EAAe,SAAA;WACb,CAAA,CAAE,4BAAF,CAA+B,CAAC,QAAhC,CAAyC,WAAzC;EADa,CAAf;;EAIA,CAAC,CAAC,EAAF,CAAK,UAAL,EAAiB,SAAA;WACf,CAAA,CAAE,uBAAF,CAA0B,CAAC,WAA3B,CAAuC,WAAvC;EADe,CAAjB;;EAIA,CAAC,CAAC,EAAF,CAAK,YAAL,EAAmB,SAAA;WACjB,UAAU,CAAC,QAAX,CAAoB,CAAA,CAAE,WAAF,CAApB,EAAoC,2CAApC;EADiB,CAAnB;;EAIA,CAAC,CAAC,EAAF,CAAK,UAAL,EAAiB,SAAA;WACf,CAAA,CAAE,uBAAF,CAA0B,CAAC,WAA3B,CAAuC,WAAvC;EADe,CAAjB;;EAIA,CAAC,CAAC,EAAF,CAAK,SAAL,EAAgB,SAAA;IACd,CAAA,CAAE,WAAF,CAAc,CAAC,GAAf,CAAmB,CAAA,CAAE,WAAF,CAAc,CAAC,GAAf,CAAA,CAAnB;WACA,CAAA,CAAE,qBAAF,CAAwB,CAAC,WAAzB,CAAqC,WAArC;EAFc,CAAhB;;EAKA,CAAC,CAAC,EAAF,CAAK,QAAL,EAAe,SAAA;IACb,CAAA,CAAE,qBAAF,CAAwB,CAAC,QAAzB,CAAkC,WAAlC;WACA,QAAQ,CAAC,IAAT,GAAgB;EAFH,CAAf;;EAKA,CAAC,CAAC,EAAF,CAAK,UAAL,EAAiB,SAAA;WACf,CAAA,CAAE,uBAAF,CAA0B,CAAC,WAA3B,CAAuC,WAAvC;EADe,CAAjB;AA3JA"
 }
\ No newline at end of file

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/tram.js	Sun Mar 20 11:43:20 2016 +0800
@@ -0,0 +1,12 @@
+// Generated by CoffeeScript 1.10.0
+(function() {
+  window.Tram = {
+    config: {
+      host: location.host,
+      domain: location.hostname
+    }
+  };
+
+}).call(this);
+
+//# sourceMappingURL=tram.js.map

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/tram.js.map	Sun Mar 20 11:43:20 2016 +0800
@@ -0,0 +1,10 @@
+{
+  "version": 3,
+  "file": "tram.js",
+  "sourceRoot": "..",
+  "sources": [
+    "coffee/tram.coffee"
+  ],
+  "names": [],
+  "mappings": ";AAAA;EAAA,MAAM,CAAC,IAAP,GACE;IAAA,MAAA,EACE;MAAA,IAAA,EAAM,QAAQ,CAAC,IAAf;MACA,MAAA,EAAQ,QAAQ,CAAC,QADjB;KADF;;AADF"
+}
\ No newline at end of file

--- a/register.html	Sat Mar 19 10:46:01 2016 +0800
+++ b/register.html	Sun Mar 20 11:43:20 2016 +0800
@@ -86,6 +86,7 @@
     </div>
 
     <script src='/js/ui/validation.js'></script>
+    <script src='/js/tram.js'></script>
     <script src='/js/register.js'></script>
   </body>
 </html>