adding email disabling to dialog and signup pages

resources/static/dialog/controllers/authenticate.js

@@ -43,6 +43,7 @@ BrowserID.Modules.Authenticate = (function() {
 
     if (!email) return;
 
+    dom.setAttr('#email', 'disabled', 'disabled');
     if(info && info.type) {
       onAddressInfo(info);
     }
@@ -54,6 +55,7 @@ BrowserID.Modules.Authenticate = (function() {
 
     function onAddressInfo(info) {
       addressInfo = info;
+      dom.removeAttr('#email', 'disabled');
 
       if(info.type === "primary") {
         self.close("primary_user", info, info);

resources/static/pages/signup.js

@@ -99,15 +99,17 @@ BrowserID.signUp = (function() {
           self = this;
 
       if (email) {
-
+        dom.setAttr('#email', 'disabled', 'disabled');
         user.isEmailRegistered(email, function(isRegistered) {
           if(isRegistered) {
+            dom.removeAttr('#email', 'disabled');
             $('#registeredEmail').html(email);
             showNotice(".alreadyRegistered");
             oncomplete && oncomplete(false);
           }
           else {
             user.addressInfo(email, function(info) {
+              dom.removeAttr('#email', 'disabled');
               if(info.type === "primary") {
                 createPrimaryUser.call(self, info, oncomplete);
               }