Client Script Type - onLoad()

• Script runs when a form loads and before control is given to the user
• Typically used to manipulate a form's appearance or content on screen

Users do not have the ability to modify form fields while an onLoad() Client Script executes.

For example, a baseline onLoad() Client Script on the Change form marks Standard Change fields read-only before control is given to the user.

Usually, onLoad() Client Scripts perform client-side-manipulation of the current form or set default record values.