--- a/coffee/register.coffee	Fri Apr 15 23:10:28 2016 +0800
+++ b/coffee/register.coffee	Fri Apr 15 23:13:05 2016 +0800
@@ -29,6 +29,19 @@
     nickname: ''
     avatar: ''
 
+  validate: (attrs, options) ->
+    @unset('avatar-errors')
+    ae = []
+    file = $('#avatar').get(0).files[0]
+    if file?
+      if not file.type.match('image/.*')?
+        ae.push("File doesn't look like an image.")
+      if file.size > 64 * 1024
+        ae.push('File is too big.')
+    if ae.length > 0
+      @set('avatar-errors', ae)
+    return @has('avatar-errors')
+
 
 window.regData = new RegistrationData()
 window.profileData = new ProfileData()
@@ -41,6 +54,9 @@
 
 
 savefn = ->
+  if not profileData.isValid()
+    return
+
   data =
     fullname: profileData.get('fullname').trim()
     nickname: profileData.get('nickname').trim()

--- a/js/register.js	Fri Apr 15 23:10:28 2016 +0800
+++ b/js/register.js	Fri Apr 15 23:13:05 2016 +0800
@@ -60,6 +60,25 @@
       avatar: ''
     };
 
+    ProfileData.prototype.validate = function(attrs, options) {
+      var ae, file;
+      this.unset('avatar-errors');
+      ae = [];
+      file = $('#avatar').get(0).files[0];
+      if (file != null) {
+        if (file.type.match('image/.*') == null) {
+          ae.push("File doesn't look like an image.");
+        }
+        if (file.size > 64 * 1024) {
+          ae.push('File is too big.');
+        }
+      }
+      if (ae.length > 0) {
+        this.set('avatar-errors', ae);
+      }
+      return this.has('avatar-errors');
+    };
+
     return ProfileData;
 
   })(Backbone.Model);
@@ -77,6 +96,9 @@
 
   savefn = function() {
     var data, failcb, file, okcb, reader;
+    if (!profileData.isValid()) {
+      return;
+    }
     data = {
       fullname: profileData.get('fullname').trim(),
       nickname: profileData.get('nickname').trim()

--- a/js/register.js.map	Fri Apr 15 23:10:28 2016 +0800
+++ b/js/register.js.map	Fri Apr 15 23:13:05 2016 +0800
@@ -6,5 +6,5 @@
     "coffee/register.coffee"
   ],
   "names": [],
-  "mappings": ";AAAA;AAAA,MAAA,2DAAA;IAAA;;;EAAA,MAAM,CAAC,WAAP,GAAyB,IAAA,IAAI,CAAC,WAAL,CAAA;;EACzB,MAAM,CAAC,WAAP,GAAyB,IAAA,IAAI,CAAC,WAAL,CAAiB;IAAA,EAAA,EAAI,CAAA,CAAE,uBAAF,CAAJ;IAAgC,KAAA,EAAO,WAAvC;GAAjB;;EAGnB;;;;;;;+BACJ,QAAA,GACE;MAAA,QAAA,EAAU,EAAV;MACA,SAAA,EAAW,EADX;MAEA,SAAA,EAAW,EAFX;;;+BAIF,QAAA,GAAU,SAAC,KAAD,EAAQ,OAAR;AACR,UAAA;MAAA,IAAC,CAAA,KAAD,CAAO,iBAAP;MACA,IAAC,CAAA,KAAD,CAAO,kBAAP;MACA,IAAC,CAAA,KAAD,CAAO,kBAAP;MACA,IAAG,wCAAkB,EAAlB,CAAqB,CAAC,IAAtB,CAAA,CAAA,KAAgC,EAAnC;QACE,IAAC,CAAA,GAAD,CAAK,iBAAL,EAAwB,CAAC,yBAAD,CAAxB,EADF;;MAEA,IAAG,2CAAmB,EAAnB,CAAA,KAA0B,EAA7B;QACE,IAAC,CAAA,GAAD,CAAK,kBAAL,EAAyB,CAAC,yBAAD,CAAzB,EADF;;MAEA,IAAG,2CAAmB,EAAnB,CAAA,KAA4B,2CAAmB,EAAnB,CAA/B;QACE,IAAC,CAAA,GAAD,CAAK,kBAAL,EAAyB,CAAC,uBAAD,CAAzB,EADF;OAAA,MAEK,IAAG,2CAAmB,EAAnB,CAAA,KAA0B,EAA7B;QACH,IAAC,CAAA,GAAD,CAAK,kBAAL,EAAyB,CAAC,yBAAD,CAAzB,EADG;;AAEL,aAAO,IAAC,CAAA,GAAD,CAAK,iBAAL,CAAA,IAA2B,IAAC,CAAA,GAAD,CAAK,kBAAL,CAA3B,IAAuD,IAAC,CAAA,GAAD,CAAK,kBAAL;IAZtD;;;;KANmB,QAAQ,CAAC;;EAqBlC;;;;;;;0BACJ,QAAA,GACE;MAAA,QAAA,EAAU,EAAV;MACA,QAAA,EAAU,EADV;MAEA,MAAA,EAAQ,EAFR;;;;;KAFsB,QAAQ,CAAC;;EAOnC,MAAM,CAAC,OAAP,GAAqB,IAAA,gBAAA,CAAA;;EACrB,MAAM,CAAC,WAAP,GAAyB,IAAA,WAAA,CAAA;;EAGzB,UAAA,GAAa,SAAA;IACX,IAAG,OAAO,CAAC,OAAR,CAAA,CAAH;MACE,WAAW,CAAC,GAAZ,CAAgB,UAAhB,EAA4B,CAA5B;aACA,CAAC,CAAC,QAAF,CAAW,OAAO,CAAC,GAAR,CAAY,UAAZ,CAAuB,CAAC,IAAxB,CAAA,CAAX,EAA2C,OAAO,CAAC,GAAR,CAAY,WAAZ,CAA3C,EAFF;;EADW;;EAMb,MAAA,GAAS,SAAA;AACP,QAAA;IAAA,IAAA,GACE;MAAA,QAAA,EAAU,WAAW,CAAC,GAAZ,CAAgB,UAAhB,CAA2B,CAAC,IAA5B,CAAA,CAAV;MACA,QAAA,EAAU,WAAW,CAAC,GAAZ,CAAgB,UAAhB,CAA2B,CAAC,IAA5B,CAAA,CADV;;IAGF,IAAA,GAAO,SAAA;MACL,WAAW,CAAC,GAAZ,CAAgB,UAAhB,EAA4B,GAA5B;MACA,CAAA,CAAE,uBAAF,CAA0B,CAAC,QAA3B,CAAoC,WAApC;aACA,QAAQ,CAAC,IAAT,GAAgB;IAHX;IAKP,MAAA,GAAS,SAAA;MACP,WAAW,CAAC,KAAZ,CAAkB,UAAlB;MACA,OAAO,CAAC,IAAR,CAAa,qBAAb,EAAoC,SAApC;aACA,CAAA,CAAE,0BAAF,CAA6B,CAAC,WAA9B,CAA0C,WAA1C;IAHO;IAKT,IAAA,GAAO,CAAA,CAAE,SAAF,CAAY,CAAC,GAAb,CAAiB,CAAjB,CAAmB,CAAC,KAAM,CAAA,CAAA;IACjC,IAAG,YAAH;MACE,MAAA,GAAa,IAAA,UAAA,CAAA;MACb,MAAM,CAAC,SAAP,GAAmB,SAAA;QACjB,CAAA,CAAE,IAAF,CAAO,CAAC,MAAR,CAAe;UAAA,MAAA,EAAQ,MAAM,CAAC,MAAf;SAAf;QACA,WAAW,CAAC,GAAZ,CAAgB,UAAhB,EAA4B,CAA5B;eACA,CAAC,CAAC,SAAF,CAAY,IAAZ,EAAkB,IAAlB,EAAwB,MAAxB;MAHiB;aAInB,MAAM,CAAC,aAAP,CAAqB,IAArB,EANF;KAAA,MAAA;MAQE,WAAW,CAAC,GAAZ,CAAgB,UAAhB,EAA4B,CAA5B;aACA,CAAC,CAAC,SAAF,CAAY,IAAZ,EAAkB,IAAlB,EAAwB,MAAxB,EATF;;EAhBO;;EA4BT,QAAA,GAAW,SAAA;WACT,CAAC,CAAC,UAAF,CAAA;EADS;;EAIX,MAAM,CAAC,QAAP,GAAkB,MAAM,CAAC,IAAP,CAAY,CAAA,CAAE,4BAAF,CAAZ,EAA6C;IAAA,IAAA,EAAM,OAAN;IAAe,QAAA,EAAU,UAAzB;GAA7C;;EAClB,MAAM,CAAC,YAAP,GAAsB,MAAM,CAAC,IAAP,CAAY,CAAA,CAAE,uBAAF,CAAZ,EAAwC;IAAA,IAAA,EAAM,WAAN;IAAmB,IAAA,EAAM,MAAzB;IAAiC,MAAA,EAAQ,QAAzC;GAAxC;;EAGtB,MAAM,CAAC,CAAP,GAAe,IAAA,IAAI,CAAC,aAAL,CAAA;;EAGf,CAAC,CAAC,EAAF,CAAK,UAAL,EAAiB,SAAA;WACf,CAAA,CAAE,4BAAF,CAA+B,CAAC,WAAhC,CAA4C,WAA5C;EADe,CAAjB;;EAIA,CAAC,CAAC,EAAF,CAAK,YAAL,EAAmB,SAAA;IACjB,CAAC,CAAC,kBAAF,CAAA;WACA,CAAA,CAAE,4BAAF,CAA+B,CAAC,QAAhC,CAAyC,WAAzC;EAFiB,CAAnB;;EAKA,CAAC,CAAC,EAAF,CAAK,UAAL,EAAiB,SAAA;WACf,CAAA,CAAE,kCAAF,CAAqC,CAAC,WAAtC,CAAkD,WAAlD;EADe,CAAjB;;EAIA,CAAC,CAAC,EAAF,CAAK,UAAL,EAAiB,SAAA;WACf,OAAO,CAAC,GAAR,CAAY,iBAAZ,EAA+B,CAAC,2CAAD,CAA/B;EADe,CAAjB;;EAIA,CAAC,CAAC,EAAF,CAAK,eAAL,EAAsB,SAAA;WACpB,CAAA,CAAE,kCAAF,CAAqC,CAAC,WAAtC,CAAkD,WAAlD;EADoB,CAAtB;;EAIA,CAAC,CAAC,EAAF,CAAK,WAAL,EAAkB,SAAA;IAChB,WAAW,CAAC,GAAZ,CAAgB,UAAhB,EAA4B,OAAO,CAAC,GAAR,CAAY,UAAZ,CAAuB,CAAC,IAAxB,CAAA,CAA5B;IACA,CAAA,CAAE,uBAAF,CAA0B,CAAC,WAA3B,CAAuC,WAAvC;WACA,CAAA,CAAE,WAAF,CAAc,CAAC,KAAf,CAAA;EAHgB,CAAlB;;EAMA,CAAC,CAAC,EAAF,CAAK,cAAL,EAAqB,SAAA;WACnB,QAAQ,CAAC,MAAT,CAAA;EADmB,CAArB;;EAIA,CAAC,CAAC,EAAF,CAAK,QAAL,EAAe,SAAC,MAAD;AACb,YAAO,MAAP;AAAA,WACO,OAAO,CAAC,MAAM,CAAC,UADtB;eAEI,WAAW,CAAC,GAAZ,CAAgB,UAAhB,EAA4B,EAA5B;AAFJ,WAGO,OAAO,CAAC,MAAM,CAAC,SAHtB;eAII,WAAW,CAAC,GAAZ,CAAgB,UAAhB,EAA4B,GAA5B;AAJJ;eAMI,WAAW,CAAC,KAAZ,CAAkB,UAAlB;AANJ;EADa,CAAf;;EAUA,CAAC,CAAC,iBAAF,CAAA;;EAGA,CAAA,CAAE,mDAAF,CAAsD,CAAC,IAAvD,CAA4D,SAAA;AAC1D,QAAA;IAAA,KAAA,GAAQ,CAAA,CAAE,IAAF;WACR,KAAK,CAAC,IAAN,CAAW,OAAX,CAAmB,CAAC,EAApB,CAAuB,SAAvB,EAAkC,SAAC,CAAD;AAChC,UAAA;MAAA,IAAG,CAAC,CAAI,IAAC,CAAA,QAAL,IAAiB,IAAC,CAAA,KAAD,KAAY,EAA9B,CAAA,IAAsC,CAAC,CAAC,OAAF,KAAa,EAAtD;QACE,CAAC,CAAC,cAAF,CAAA;QACA,KAAA,GAAQ,KAAK,CAAC,IAAN,CAAW,OAAX,CAAmB,CAAC,KAApB,CAA0B,IAA1B;QACR,KAAA,GAAQ,KAAK,CAAC,IAAN,CAAW,OAAX,CAAmB,CAAC,EAApB,CAAuB,KAAA,GAAQ,CAA/B;QACR,IAAG,KAAK,CAAC,MAAN,KAAkB,CAArB;iBACE,KAAK,CAAC,KAAN,CAAA,EADF;SAAA,MAAA;iBAGE,KAAK,CAAC,IAAN,CAAW,QAAX,CAAoB,CAAC,OAArB,CAA6B,OAA7B,EAHF;SAJF;;IADgC,CAAlC;EAF0D,CAA5D;AA7HA"
+  "mappings": ";AAAA;AAAA,MAAA,2DAAA;IAAA;;;EAAA,MAAM,CAAC,WAAP,GAAyB,IAAA,IAAI,CAAC,WAAL,CAAA;;EACzB,MAAM,CAAC,WAAP,GAAyB,IAAA,IAAI,CAAC,WAAL,CAAiB;IAAA,EAAA,EAAI,CAAA,CAAE,uBAAF,CAAJ;IAAgC,KAAA,EAAO,WAAvC;GAAjB;;EAGnB;;;;;;;+BACJ,QAAA,GACE;MAAA,QAAA,EAAU,EAAV;MACA,SAAA,EAAW,EADX;MAEA,SAAA,EAAW,EAFX;;;+BAIF,QAAA,GAAU,SAAC,KAAD,EAAQ,OAAR;AACR,UAAA;MAAA,IAAC,CAAA,KAAD,CAAO,iBAAP;MACA,IAAC,CAAA,KAAD,CAAO,kBAAP;MACA,IAAC,CAAA,KAAD,CAAO,kBAAP;MACA,IAAG,wCAAkB,EAAlB,CAAqB,CAAC,IAAtB,CAAA,CAAA,KAAgC,EAAnC;QACE,IAAC,CAAA,GAAD,CAAK,iBAAL,EAAwB,CAAC,yBAAD,CAAxB,EADF;;MAEA,IAAG,2CAAmB,EAAnB,CAAA,KAA0B,EAA7B;QACE,IAAC,CAAA,GAAD,CAAK,kBAAL,EAAyB,CAAC,yBAAD,CAAzB,EADF;;MAEA,IAAG,2CAAmB,EAAnB,CAAA,KAA4B,2CAAmB,EAAnB,CAA/B;QACE,IAAC,CAAA,GAAD,CAAK,kBAAL,EAAyB,CAAC,uBAAD,CAAzB,EADF;OAAA,MAEK,IAAG,2CAAmB,EAAnB,CAAA,KAA0B,EAA7B;QACH,IAAC,CAAA,GAAD,CAAK,kBAAL,EAAyB,CAAC,yBAAD,CAAzB,EADG;;AAEL,aAAO,IAAC,CAAA,GAAD,CAAK,iBAAL,CAAA,IAA2B,IAAC,CAAA,GAAD,CAAK,kBAAL,CAA3B,IAAuD,IAAC,CAAA,GAAD,CAAK,kBAAL;IAZtD;;;;KANmB,QAAQ,CAAC;;EAqBlC;;;;;;;0BACJ,QAAA,GACE;MAAA,QAAA,EAAU,EAAV;MACA,QAAA,EAAU,EADV;MAEA,MAAA,EAAQ,EAFR;;;0BAIF,QAAA,GAAU,SAAC,KAAD,EAAQ,OAAR;AACR,UAAA;MAAA,IAAC,CAAA,KAAD,CAAO,eAAP;MACA,EAAA,GAAK;MACL,IAAA,GAAO,CAAA,CAAE,SAAF,CAAY,CAAC,GAAb,CAAiB,CAAjB,CAAmB,CAAC,KAAM,CAAA,CAAA;MACjC,IAAG,YAAH;QACE,IAAO,mCAAP;UACE,EAAE,CAAC,IAAH,CAAQ,kCAAR,EADF;;QAEA,IAAG,IAAI,CAAC,IAAL,GAAY,EAAA,GAAK,IAApB;UACE,EAAE,CAAC,IAAH,CAAQ,kBAAR,EADF;SAHF;;MAKA,IAAG,EAAE,CAAC,MAAH,GAAY,CAAf;QACE,IAAC,CAAA,GAAD,CAAK,eAAL,EAAsB,EAAtB,EADF;;AAEA,aAAO,IAAC,CAAA,GAAD,CAAK,eAAL;IAXC;;;;KANc,QAAQ,CAAC;;EAoBnC,MAAM,CAAC,OAAP,GAAqB,IAAA,gBAAA,CAAA;;EACrB,MAAM,CAAC,WAAP,GAAyB,IAAA,WAAA,CAAA;;EAGzB,UAAA,GAAa,SAAA;IACX,IAAG,OAAO,CAAC,OAAR,CAAA,CAAH;MACE,WAAW,CAAC,GAAZ,CAAgB,UAAhB,EAA4B,CAA5B;aACA,CAAC,CAAC,QAAF,CAAW,OAAO,CAAC,GAAR,CAAY,UAAZ,CAAuB,CAAC,IAAxB,CAAA,CAAX,EAA2C,OAAO,CAAC,GAAR,CAAY,WAAZ,CAA3C,EAFF;;EADW;;EAMb,MAAA,GAAS,SAAA;AACP,QAAA;IAAA,IAAG,CAAI,WAAW,CAAC,OAAZ,CAAA,CAAP;AACE,aADF;;IAGA,IAAA,GACE;MAAA,QAAA,EAAU,WAAW,CAAC,GAAZ,CAAgB,UAAhB,CAA2B,CAAC,IAA5B,CAAA,CAAV;MACA,QAAA,EAAU,WAAW,CAAC,GAAZ,CAAgB,UAAhB,CAA2B,CAAC,IAA5B,CAAA,CADV;;IAGF,IAAA,GAAO,SAAA;MACL,WAAW,CAAC,GAAZ,CAAgB,UAAhB,EAA4B,GAA5B;MACA,CAAA,CAAE,uBAAF,CAA0B,CAAC,QAA3B,CAAoC,WAApC;aACA,QAAQ,CAAC,IAAT,GAAgB;IAHX;IAKP,MAAA,GAAS,SAAA;MACP,WAAW,CAAC,KAAZ,CAAkB,UAAlB;MACA,OAAO,CAAC,IAAR,CAAa,qBAAb,EAAoC,SAApC;aACA,CAAA,CAAE,0BAAF,CAA6B,CAAC,WAA9B,CAA0C,WAA1C;IAHO;IAKT,IAAA,GAAO,CAAA,CAAE,SAAF,CAAY,CAAC,GAAb,CAAiB,CAAjB,CAAmB,CAAC,KAAM,CAAA,CAAA;IACjC,IAAG,YAAH;MACE,MAAA,GAAa,IAAA,UAAA,CAAA;MACb,MAAM,CAAC,SAAP,GAAmB,SAAA;QACjB,CAAA,CAAE,IAAF,CAAO,CAAC,MAAR,CAAe;UAAA,MAAA,EAAQ,MAAM,CAAC,MAAf;SAAf;QACA,WAAW,CAAC,GAAZ,CAAgB,UAAhB,EAA4B,CAA5B;eACA,CAAC,CAAC,SAAF,CAAY,IAAZ,EAAkB,IAAlB,EAAwB,MAAxB;MAHiB;aAInB,MAAM,CAAC,aAAP,CAAqB,IAArB,EANF;KAAA,MAAA;MAQE,WAAW,CAAC,GAAZ,CAAgB,UAAhB,EAA4B,CAA5B;aACA,CAAC,CAAC,SAAF,CAAY,IAAZ,EAAkB,IAAlB,EAAwB,MAAxB,EATF;;EAnBO;;EA+BT,QAAA,GAAW,SAAA;WACT,CAAC,CAAC,UAAF,CAAA;EADS;;EAIX,MAAM,CAAC,QAAP,GAAkB,MAAM,CAAC,IAAP,CAAY,CAAA,CAAE,4BAAF,CAAZ,EAA6C;IAAA,IAAA,EAAM,OAAN;IAAe,QAAA,EAAU,UAAzB;GAA7C;;EAClB,MAAM,CAAC,YAAP,GAAsB,MAAM,CAAC,IAAP,CAAY,CAAA,CAAE,uBAAF,CAAZ,EAAwC;IAAA,IAAA,EAAM,WAAN;IAAmB,IAAA,EAAM,MAAzB;IAAiC,MAAA,EAAQ,QAAzC;GAAxC;;EAGtB,MAAM,CAAC,CAAP,GAAe,IAAA,IAAI,CAAC,aAAL,CAAA;;EAGf,CAAC,CAAC,EAAF,CAAK,UAAL,EAAiB,SAAA;WACf,CAAA,CAAE,4BAAF,CAA+B,CAAC,WAAhC,CAA4C,WAA5C;EADe,CAAjB;;EAIA,CAAC,CAAC,EAAF,CAAK,YAAL,EAAmB,SAAA;IACjB,CAAC,CAAC,kBAAF,CAAA;WACA,CAAA,CAAE,4BAAF,CAA+B,CAAC,QAAhC,CAAyC,WAAzC;EAFiB,CAAnB;;EAKA,CAAC,CAAC,EAAF,CAAK,UAAL,EAAiB,SAAA;WACf,CAAA,CAAE,kCAAF,CAAqC,CAAC,WAAtC,CAAkD,WAAlD;EADe,CAAjB;;EAIA,CAAC,CAAC,EAAF,CAAK,UAAL,EAAiB,SAAA;WACf,OAAO,CAAC,GAAR,CAAY,iBAAZ,EAA+B,CAAC,2CAAD,CAA/B;EADe,CAAjB;;EAIA,CAAC,CAAC,EAAF,CAAK,eAAL,EAAsB,SAAA;WACpB,CAAA,CAAE,kCAAF,CAAqC,CAAC,WAAtC,CAAkD,WAAlD;EADoB,CAAtB;;EAIA,CAAC,CAAC,EAAF,CAAK,WAAL,EAAkB,SAAA;IAChB,WAAW,CAAC,GAAZ,CAAgB,UAAhB,EAA4B,OAAO,CAAC,GAAR,CAAY,UAAZ,CAAuB,CAAC,IAAxB,CAAA,CAA5B;IACA,CAAA,CAAE,uBAAF,CAA0B,CAAC,WAA3B,CAAuC,WAAvC;WACA,CAAA,CAAE,WAAF,CAAc,CAAC,KAAf,CAAA;EAHgB,CAAlB;;EAMA,CAAC,CAAC,EAAF,CAAK,cAAL,EAAqB,SAAA;WACnB,QAAQ,CAAC,MAAT,CAAA;EADmB,CAArB;;EAIA,CAAC,CAAC,EAAF,CAAK,QAAL,EAAe,SAAC,MAAD;AACb,YAAO,MAAP;AAAA,WACO,OAAO,CAAC,MAAM,CAAC,UADtB;eAEI,WAAW,CAAC,GAAZ,CAAgB,UAAhB,EAA4B,EAA5B;AAFJ,WAGO,OAAO,CAAC,MAAM,CAAC,SAHtB;eAII,WAAW,CAAC,GAAZ,CAAgB,UAAhB,EAA4B,GAA5B;AAJJ;eAMI,WAAW,CAAC,KAAZ,CAAkB,UAAlB;AANJ;EADa,CAAf;;EAUA,CAAC,CAAC,iBAAF,CAAA;;EAGA,CAAA,CAAE,mDAAF,CAAsD,CAAC,IAAvD,CAA4D,SAAA;AAC1D,QAAA;IAAA,KAAA,GAAQ,CAAA,CAAE,IAAF;WACR,KAAK,CAAC,IAAN,CAAW,OAAX,CAAmB,CAAC,EAApB,CAAuB,SAAvB,EAAkC,SAAC,CAAD;AAChC,UAAA;MAAA,IAAG,CAAC,CAAI,IAAC,CAAA,QAAL,IAAiB,IAAC,CAAA,KAAD,KAAY,EAA9B,CAAA,IAAsC,CAAC,CAAC,OAAF,KAAa,EAAtD;QACE,CAAC,CAAC,cAAF,CAAA;QACA,KAAA,GAAQ,KAAK,CAAC,IAAN,CAAW,OAAX,CAAmB,CAAC,KAApB,CAA0B,IAA1B;QACR,KAAA,GAAQ,KAAK,CAAC,IAAN,CAAW,OAAX,CAAmB,CAAC,EAApB,CAAuB,KAAA,GAAQ,CAA/B;QACR,IAAG,KAAK,CAAC,MAAN,KAAkB,CAArB;iBACE,KAAK,CAAC,KAAN,CAAA,EADF;SAAA,MAAA;iBAGE,KAAK,CAAC,IAAN,C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 }
\ No newline at end of file

--- a/register.html	Fri Apr 15 23:10:28 2016 +0800
+++ b/register.html	Fri Apr 15 23:13:05 2016 +0800
@@ -85,6 +85,7 @@
           <label for="avatar" class="uk-form-label">Avatar</label>
           <div class="uk-form-controls">
             <input id="avatar" type="file" accept="image/*" value="">
+            <div class="uk-text-danger" rv-each-error="data:avatar-errors">{ error }</div>
             <p>A good avatar:</p>
             <ul>
               <li>has width and height between 32 and 96 pixels</li>