onreadystatechange Event

Fires when the state of the object has changed.

Syntax

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

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

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

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

Remarks

Bubbles No

Cancels No

To invoke Change the ready state.

Default action Signals the ready state of the document.

You can use the readyState property to query the current state of the element when the onreadystatechange event fires.

All elements expose an onreadystatechange event. The following objects always fire the event because they load data: APPLET, document, FRAME, FRAMESET, IFRAME, IMG, LINK, OBJECT, SCRIPT, and XML elements. Other objects will only fire the onreadystatechange event when a DHTML Behavior is attached.

When working with behaviors, wait for the onreadystatechange event to fire and verify that the readyState property of the element is set to complete to ensure that the behavior is completely downloaded and applied to the element. Until the onreadystatechange event fires, if you use any of the behavior-defined members before attaching the behavior to the element, a scripting error can result, indicating that the object does not support that particular property or method.

Bubbles	No
Cancels	No
To invoke	Change the ready state.
Default action	Signals the ready state of the document.

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

srcElement Retrieves the object that fired the event.

type Retrieves the event name from the event object.

srcElement	Retrieves the object that fired the event.
type	Retrieves the event name from the event object.

Example

This example uses the onreadystatechange event to invoke a function when the readyState is complete.
document.onreadystatechange=fnStartInit;
function fnStartInit(){
   if(event.readyState=="complete"){
      // Finish initialization.
   }
}

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, ACRONYM, ADDRESS, APPLET, AREA, B, BASE, BASEFONT, BDO, BGSOUND, BIG, BLOCKQUOTE, BODY, BR, BUTTON, CAPTION, CENTER, CITE, CODE, COL, COLGROUP, COMMENT, custom, DD, DEL, DFN, DIR, DIV, DL, document, DT, EM, EMBED, FIELDSET, FONT, FORM, HEAD, Hn, HR, HTML, I, IMG, INPUT type=button, INPUT type=checkbox, INPUT type=file, INPUT type=hidden, INPUT type=image, INPUT type=password, INPUT type=radio, INPUT type=reset, INPUT type=submit, INPUT type=text, INS, ISINDEX, KBD, LABEL, LEGEND, LI, LINK, LISTING, MAP, MARQUEE, MENU, NEXTID, NOBR, NOFRAMES, NOSCRIPT, OBJECT, OL, OPTION, P, PLAINTEXT, PRE, Q, RT, RUBY, S, SAMP, SCRIPT, SELECT, SMALL, SPAN, STRIKE, STRONG, STYLE, SUB, SUP, TABLE, TBODY, TD, TEXTAREA, TFOOT, TH, THEAD, TITLE, TR, TT, U, UL, VAR, XML, XMP