SPUtility.js is a JavaScript library used to make modifications to SharePoint's list forms

SPUtility.js is a JavaScript library used to make modifications to SharePoint's list forms (NewForm.aspx and EditForm.aspx in a survey, custom list or library). It works with SharePoint 2007, 2010, and 2013 (including SharePoint Online / Office 365).

SPUtility.GetSPField('Title').SetValue('Hello world!');

Features:

• Set or get field values in Document Libraries, all sorts of List forms (custom lists, issues, etc), and survey
• Make a field read only
• Hide a field from view
• No server side code to deploy!

This can be used for:

• Preventing a user from selecting a value when an item is initially created (ex: Status must be PENDING when the item is created)
• Hiding fields from a submitter but allowing the field to be edited (or vice versa).
• Auto-populating the form using a URL with query parameters
• Auto-populate a list column with a sequential number
• Hide/Show field on list form based on value from another field

sputility.js

Thanks to authors for making this wonderful utility.