Email id validation using jquery or javascript

Introduction

Here is a javascript function to validate email id.
you need to add class "email" in text control.

Code 

1. <script type="text/javascript">      
2. $(document).ready(function () {      
3.   
4. $(".email").change(function () {  
5. var inputvalues = $(this).val();  
6. var regex = /^([a-zA-Z0-9_.+-])+\@(([a-zA-Z0-9-])+\.)+([a-zA-Z0-9]{2,4})+$/;  
7. if(!regex.test(inputvalues)){  
8. alert("invalid email id");  
9. return regex.test(inputvalues);  
10. }  
11. });  
12.   
13.  });          
14. </script>          
15.         
16. Html input type text        
17. Email : <input type="text" class="email" >