W3Schools

home HOME

JS Reference
JS Overview
JS Array
JS Boolean
JS Date
JS Math
JS Number
JS String
JS RegExp
JS Functions
JS Events

DOM Objects
DOM Window
DOM Navigator
DOM Screen
DOM History
DOM Location

DOM Document

DOM Anchor
DOM Area
DOM Base
DOM Body
DOM Button
DOM Event
DOM Form
DOM Frame
DOM Frameset
DOM IFrame
DOM Image
DOM Input Button
DOM Input Checkbox
DOM Input File
DOM Input Hidden
DOM Input Password
DOM Input Radio
DOM Input Reset
DOM Input Submit
DOM Input Text
DOM Link
DOM Meta
DOM Object
DOM Option
DOM Select
DOM Style
DOM Table
DOM TableCell
DOM TableRow
DOM Textarea

Selected Reading
Web Statistics
Web Glossary
Web Hosting
Web Quality

W3Schools Forum

Helping W3Schools

JavaScript onmouseover Event


Event Reference Complete Event Reference

Definition and Usage

The onmouseover event occurs when the mouse pointer moves over a specified object.

Syntax

onmouseover="SomeJavaScriptCode"

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

Supported by the following HTML tags:

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

Supported by the following JavaScript objects:

layer, link


Example 1

In the following example we will display an alert box when the user moves the mouse pointer over the image:

<img src="image_w3default.gif" alt="W3Schools"
onmouseover="alert('Visit W3Schools!')" />

The output of the code above will be:

W3Schools


Example 2

In the following example we will add an image that should act as a link button on a web page. We will then add an onMouseOver event and an onMouseOut event that will run two JavaScript functions that will change between two images:

<html>
<head>
<script type="text/javascript">
function mouseOver()
{
document.b1.src ="b_blue.gif";
}
function mouseOut()
{
document.b1.src ="b_pink.gif";
}
</script>
</head>
<body>
<a href="http://www.w3schools.com" target="_blank"
onmouseover="mouseOver()"
onmouseout="mouseOut()">
<img border="0" alt="Visit W3Schools!"
src="b_pink.gif" name="b1" /></a>
</body>
</html>

The output of the code above will be:

Visit W3Schools!


Try-It-Yourself Demos

onmouseover
How to use onmouseover.


Event Reference Complete Event Reference

Ektron CMS400.NET Ektron - What do you want your website to do?
The Ektron Intranet
Take the video tour

The Ektron Intranet lets you do everything you need to do on your corporate intranet and everything you want to do... all with just one application.

What can you do with the Ektron Intranet?

Ektron

Navigate through content, documents, assets, colleagues and workgroups quickly and intuitively with enterprise search

Ektron

Communicate with friends and colleagues with forums, message boards and corporate blogging using the new Social Networking Platform

Ektron

Utilize the extensive out-of-the box features or customize your site through Ektron CMS400.NET's open architecture

Ektron

Promote collaboration in your organization through project workspaces where others can efficiently find information and work together

Ektron

Author/edit content, manage navigation, menus, audit trails, workflow and approvals with the best in breed Content Management

See why there are 20,000+ Ektron integrations worldwide.

Take the Video Tour TAKE THE VIDEO TOUR
Take the Video Tour or download a FREE TRIAL today.



Jump to: Top of Page or HOME or Printer Friendly Printer friendly page

W3Schools provides material for training only. We do not warrant the correctness of its contents. The risk from using it lies entirely with the user. While using this site, you agree to have read and accepted our terms of use and privacy policy.

Copyright 1999-2008 by Refsnes Data. All Rights Reserved.

Validate Validate W3C-WAI level A conformance icon W3Schools was converted to XHTML in December 1999