Email validation in Javascript

Tue Sep 13, 2011 11:03 pm

Email validation in Javascript based on pattern expression

Code:: <html> <title>email validation</title> <script language="JavaScript" type="text/javascript"> // Validate Email . function validateEmail(email){ var reg = /^([A-Za-z0-9_-.])+@([A-Za-z0-9_-.])+.([A-Za-z]{2,4})$/; if (reg.test(email)) { document.getElementById("errorDiv").innerHTML = "This email is valid."; }else{ document.getElementById("errorDiv").innerHTML = "This email is not valid."; } } </script> <table> <tr><td> <input type="text" id="email" name="email" /> <input type="button" onclick="validateEmail(email.value);" value="check Email" /><br/> <div id="errorDiv"/> </td> </tr> </table> </html>