get all the elements of a particular form

Question

function getInputElements() {     var inputs = document.getElementsByTagName("input"); } 

The above code gets all the input elements on a page which has more than one form. How do I get the input elements of a particular form using plain JavaScript?

Answer 1

document.getElementById("someFormId").elements; 

This collection will also contain <select>, <textarea> and <button> elements (among others), but you probably want that.

Answer 2

document.forms["form_name"].getElementsByTagName("input");