HTML - How to pre-populate form field with known value upon load?

Question

I have this web page, say Home.html, that has links to other employee-related web sites. There is one, say www.SomeSite.com/HR.xyz, where it has a form to login. There are

Answer 1

You need some way of reading the value passed in the URL on the HR.xyz page. You need to either use Javascript or some server side logic (PHP, .NET, etc)