onmouseover Event

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onmouseout Event

onmouseup Event

DHTML Events

Web Workshop | DHTML, HTML & CSS

onmouseover Event

Fires when the user moves the mouse pointer into the object.

Syntax

Inline HTML <ELEMENT onmouseover = "handler" ... > All platforms

Event property object.onmouseover = handler JScript (compatible with ECMA 262 language specification) only

Named script <SCRIPT FOR = object EVENT = onmouseover> Internet Explorer only

Inline HTML	<ELEMENT onmouseover = "handler" ... >	All platforms
Event property	object.onmouseover = handler	JScript (compatible with ECMA 262 language specification) only
Named script	<SCRIPT FOR = object EVENT = onmouseover>	Internet Explorer only

Remarks

Bubbles Yes

Cancels Yes

To invoke Move the mouse pointer into an object.

Default action Initiates any action associated with this event.

The event occurs when the user moves the mouse pointer into the object, and it does not repeat unless the user moves the mouse pointer out of the object and then back into it.

Bubbles	Yes
Cancels	Yes
To invoke	Move the mouse pointer into an object.
Default action	Initiates any action associated with this event.

Event Object Properties

Although event handlers in the DHTML Object Model do not receive parameters directly, the handler can query the event object for data.
Event Object Properties

altKey Retrieves the current state of the ALT key.

button Retrieves which mouse button, if any, is pressed.

cancelBubble Sets or retrieves whether the current event should bubble up the hierarchy of event handlers.

clientX Retrieves the x-coordinate of the mouse cursor relative to the client area of the window, excluding window decorations or scroll bars.

clientY Retrieves the y-coordinate of the mouse cursor relative to the client area of the window, excluding window decorations or scroll bars.

ctrlKey Retrieves the state of the CTRL key.

fromElement Retrieves the object the cursor is exiting during the onmouseover and onmouseout events.

offsetX Retrieves the horizontal coordinate of the mouse's position relative to the object firing the event.

offsetY Retrieves the vertical coordinate of the mouse's position relative to the object firing the event.

returnValue Sets or retrieves the return value from the event.

screenX Retrieves the horizontal position of the mouse, in pixels, relative to the user's screen.

screenY Retrieves the vertical position of the mouse, in pixels, relative to the user's screen.

shiftKey Retrieves the state of the SHIFT key.

srcElement Retrieves the object that fired the event.

toElement Retrieves the object being moved to as a result of an onmouseover or onmouseout event.

type Retrieves the event name from the event object.

x Retrieves the x-coordinate of the mouse cursor relative to the parent element.

y Retrieves the y-coordinate of the mouse cursor relative to the parent element.

altKey	Retrieves the current state of the ALT key.
button	Retrieves which mouse button, if any, is pressed.
cancelBubble	Sets or retrieves whether the current event should bubble up the hierarchy of event handlers.
clientX	Retrieves the x-coordinate of the mouse cursor relative to the client area of the window, excluding window decorations or scroll bars.
clientY	Retrieves the y-coordinate of the mouse cursor relative to the client area of the window, excluding window decorations or scroll bars.
ctrlKey	Retrieves the state of the CTRL key.
fromElement	Retrieves the object the cursor is exiting during the onmouseover and onmouseout events.
offsetX	Retrieves the horizontal coordinate of the mouse's position relative to the object firing the event.
offsetY	Retrieves the vertical coordinate of the mouse's position relative to the object firing the event.
returnValue	Sets or retrieves the return value from the event.
screenX	Retrieves the horizontal position of the mouse, in pixels, relative to the user's screen.
screenY	Retrieves the vertical position of the mouse, in pixels, relative to the user's screen.
shiftKey	Retrieves the state of the SHIFT key.
srcElement	Retrieves the object that fired the event.
toElement	Retrieves the object being moved to as a result of an onmouseover or onmouseout event.
type	Retrieves the event name from the event object.
x	Retrieves the x-coordinate of the mouse cursor relative to the parent element.
y	Retrieves the y-coordinate of the mouse cursor relative to the parent element.

Example

This example uses the onmouseover event to apply a new style to an object.
<DIV>
<P onmouseover="this.style.color='red'"
   onmouseout="this.style.color='black'">
Move the mouse pointer over this text, then move it elsewhere in the 
document. Move the mouse pointer over this text, then move it 
elsewhere in the document.   
</DIV>
This example shows how to change the value of a text area in response to mouse events.
<DIV>
<P>Move the mouse pointer into the text area to fire the 
   onmouseover event. Move it out to clear the text.
<TEXTAREA NAME=txtMouseTrack 
   onmouseover="this.value='onmouseover fired'" 
   onmouseout="this.value=''">
</TEXTAREA>
</DIV>
This feature requires Internet Explorer 4.0 or later. Click the icon below to install the latest version. Then reload this page to view the sample.

Applies To

[ Object Name ]

Platform Version

Win16:

Win32:

Mac:

Unix:

WinCE:

Version data is listed when the mouse hovers over a link, or the link has focus.

A, ADDRESS, APPLET, AREA, B, BDO, BIG, BLOCKQUOTE, BODY, BUTTON, CAPTION, CENTER, CITE, CODE, custom, DD, DFN, DIR, DIV, DL, document, DT, EM, EMBED, FIELDSET, FONT, FORM, Hn, HR, I, IMG, INPUT type=button, INPUT type=checkbox, INPUT type=file, INPUT type=image, INPUT type=password, INPUT type=radio, INPUT type=reset, INPUT type=submit, INPUT type=text, KBD, LABEL, LEGEND, LI, LISTING, MAP, MARQUEE, MENU, NEXTID, NOBR, OL, P, PLAINTEXT, PRE, RT, RUBY, S, SAMP, SELECT, SMALL, SPAN, STRIKE, STRONG, SUB, SUP, TABLE, TBODY, TD, TEXTAREA, TFOOT, TH, THEAD, TR, TT, U, UL, VAR, XMP