<form name  = "signupform">
   <label>{{label.password}}</label>
      <input type="password"  class="form-control" id="pw1" name="pw1"  ng-model="user.password" required ></input>

   <label>{{label.retypePassword}}</label>
      <input type="password" class="form-control" id="pw2" name="pw2" ng-model="pw2" ng-required="" pw-check="pw1"></input>

   <label>{{label.email}}</label>
      <input type="email" id = "email" name = "email" ng-model="user.email" class="form-control" ></input>
   <div class = "msg-block" ng-show = "signupform.email.$error">
     <img src = "./images/error-icon.png" width = "25" height = "25" ng-show="signupform.email.$error.email">
         <span ng-show="signupform.email.$error.email && signupform.email.$dirty">Entered email is not valid</span>
   </div>
</form>

 <button type="button" class="btn btn-primary" ng-click=" checkuserexist(); ng-disabled="!signupform.$valid" data-dismiss="modal">Save changes</button>