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onfocus Event

Event Object Reference Event Object

Example

Execute a JavaScript when an input field gets focus:

<input type="text" id="fname" onfocus="setStyle(this.id)">

Try it yourself »

Definition and Usage

The onfocus event occurs when an element gets focus.

Syntax

In HTML:

<element onfocus="SomeJavaScriptCode">

In JavaScript:

object.onfocus="SomeJavaScriptCode"

Parameter Description
SomeJavaScriptCode Required. Specifies a JavaScript to be executed when the event occurs


Browser Support

Internet Explorer Firefox Opera Google Chrome Safari

The onfocus event is supported in all major browsers.


onfocus is Supported by the Following HTML Tags:

<a>, <acronym>, <address>, <area>, <b>, <bdo>, <big>, <blockquote>, <button>, <caption>, <cite>, <dd>, <del>, <dfn>, <div>, <dl>, <dt>, <em>, <fieldset>, <form>, <frame>, <frameset>, <h1> to <h6>, <hr>, <i>, <iframe>, <img>, <input>, <ins>, <kbd>, <label>, <legend>, <li>, <object>, <ol>, <p>, <pre>, <q>, <samp>, <select>, <small>, <span>, <strong>, <sub>, <sup>, <table>, <tbody>, <td>, <textarea>, <tfoot>, <th>, <thead>, <tr>, <tt>, <ul>, <var>

onfocus is Supported by the Following JavaScript Objects:

Document, Window


Event Object Reference Event Object
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