A JavaScript for verifying email address in a form | 太阳帆数� ...
 

A JavaScript for verifying email address in a form By Zhanshan Dong on August 25th, 2011 To get a valid email address in a web form, you have to make sure that users enter a valid email address. <a href="http://www.nfljerseys-supply.com/"><strong>NFL jersey supply</strong></a> One way to that is using a javascript to do it. After users enter an email address, use javascript to verify it right way. If the email is valid, move to the next field. <a href="http://www.nfljerseys-supply.com/"><strong>NHL jerseys supply</strong></a> Otherwise, popup an alert dialog and highlight the email input box. Allow users to modify their inputs. Here is a simply JavaScript code. function verifyEmail(formname, email) { var emailRegEx = /^[A-Z0-9._%+-]+@[A-Z0-9.-]+.[A-Z]{2,4}/i; if (email.search(emailRegEx) == -1) { alert("请输入一个有效的电å*�邮件地å�€. "); var <a href="http://www.nfljerseys-supply.com/"><strong>NHL jerseys</strong></a> myform = window.document.forms[formname]; myform.elements["email"].focus(); } }