angular form validation in ng-repeat

http://angularjs.org/

HTML

<script src="http://code.angularjs.org/angular-1.0.0rc10.js"></script>
<div>
<form novalidate class="form-vertical" name="detailsForm" ng-controller="DetailsCtrl">

  <div ng-repeat="obj in formData.socials">
      <ng-form name="urlForm">
            <input type="url" name="obj.Url" ng-model="obj.url">
      </ng-form>
  </div>  
</form>
</div>

CSS

.alert{
    color:red;
}

JavaScript

var myApp = angular.module('myApp', []);
myApp.controller('DetailsCtrl', ['$scope', function($scope) {
    $scope.loading = false;
    $scope.formData = {
        socials: [{
            url: 'http://www.valid.com'},
        {
            url: 'invalid url'}]
    };
}]);