onmouseover Event
Example
Execute a JavaScript when moving the mouse pointer onto an image:
<img onmouseover="bigImg(this)" src="smiley.gif" alt="Smiley">
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More "Try it Yourself" examples below.
Definition and Usage
The onmouseover event occurs when the mouse pointer is moved onto an element, or onto one of its children.
Tip: This event is often used together with the onmouseout event, which occurs when a user moves the mouse pointer out of an element.
Browser Support
| Event | |||||
|---|---|---|---|---|---|
| onmouseover | Yes | Yes | Yes | Yes | Yes |
Syntax
In JavaScript, using the addEventListener() method:
object.addEventListener("mouseover", myScript);
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Note: The addEventListener() method is not supported in Internet Explorer 8 and earlier versions.
Technical Details
| Bubbles: | Yes |
|---|---|
| Cancelable: | Yes |
| Event type: | MouseEvent |
| Supported HTML tags: | All HTML elements, EXCEPT: <base>, <bdo>, <br>, <head>, <html>, <iframe>, <meta>, <param>, <script>, <style>, and <title> |
| DOM Version: | Level 2 Events |
More Examples
Example
This example demonstrates the difference between the onmousemove, onmouseenter and mouseover events:
<div onmousemove="myMoveFunction()">
<p id="demo">I will demonstrate onmousemove!</p>
</div>
<div onmouseenter="myEnterFunction()">
<p id="demo2">I will demonstrate onmouseenter!</p>
</div>
<div onmouseover="myOverFunction()">
<p id="demo3">I will demonstrate onmouseover!</p>
</div>
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