AngularJS Live Example

HTML

<script src="http://code.angularjs.org/angular-1.0.0rc5.min.js"></script>
<div ng-app="HelloApp">
    <div ng-controller="MyCtrl">
        <form name="form">
          <input type="number" name="box1" ng-model="box1"
        min="0" max="100"/>
          <span ng-show="form.box1.$error.min">Please enter a number larger than 0</span>
          <span ng-show="form.box1.$error.max">Please enter a number smaller than 100</span>  
        </form>
    </div>
</div>

JavaScript

var app = angular.module('HelloApp', []);
    


app.controller('MyCtrl',['$scope','$element', function($scope, $element) {
    $scope.box1 = 20;
}]);