Reference

HTML5 Form Events

Events triggered by actions inside a HTML form. Applies to all HTML5 elements, but is most common in form elements:

Attribute	Value	Description
onblur	script	Script to be run when an element loses focus
onchange	script	Script to be run when an element changes
oncontextmenuNew	script	Script to be run when a context menu is triggered
onfocus	script	Script to be run when an element gets focus
onformchangeNew	script	Script to be run when a form changes
onforminputNew	script	Script to be run when a form gets user input
oninputNew	script	Script to be run when an element gets user input
oninvalidNew	script	Script to be run when an element is invalid
onreset	script	Script to be run when a form is reset Not supported in HTML5
onselect	script	Script to be run when an element is selected
onsubmit	script	Script to be run when a form is submitted