Email address regex for ValidationTextBox
<html> <head> <link rel="StyleSheet" type="text/css" href="js/dojo/dijit/themes/tundra/tundra.css"> <script type="text/javascript"> var djConfig = { baseScriptUri : "js/dojo/", parseOnLoad : true }; </script> <script type="text/javascript" src="js/dojo/dojo/dojo.js"></script> <script> dojo.require("dojo.parser"); dojo.require("dijit.form.ValidationTextBox"); </script> </head> <body class="tundra"> <div class="formContainer"> <form action="" method="get" name="custForm"> <label for="email">Email: </label> <input type="text" id="email" name="email" size="30" dojoType="dijit.form.ValidationTextBox" required="true" regExp="[\b[A-Z0-9._%+-]+@[A-Z0-9.-]+\.[A-Z]{2,4}\b]+" promptMessage="Enter email address." invalidMessage="Invalid Email Address." trim="true" /> </form> </div> </body> </html>