Some common restrictions are: Leaving the last requirement for now, as it requires a server-side script, let's see what's possible using just client-side HTML and Java Script.
And please feel free to give comments on this tutorial. I am a Web Developer, Professional Blogger and Digital Marketer from India. I started this blog in february 2015 to help web developers & bloggers by providing easy and best tutorials, articles and offers for web developers and bloggers.A lot of websites now require registration, meaning that users need to be assigned a username and password.Here are some simple steps to make the process more secure.The form below has three input fields: username, pwd1 and pwd2. If a false value is returned then the form submission is cancelled.This code will work for browsers as far back as Netscape 4 (circa 1997). If you're not sure how to place this on your page, you might need to read the preceding article on Form Validation, or view the HTML source of this page.