Set Width, title and msg for message dialog : MessageBox « Ext JS « JavaScript DHTML

Set Width, title and msg for message dialog

<title>Hello World Window</title>
<link rel="stylesheet" type="text/css" href="ext-3.0.0/resources/css/ext-all.css" />
<script type="text/javascript" src="ext-3.0.0/adapter/ext/ext-base.js"></script>
<script type="text/javascript" src="ext-3.0.0/ext-all.js"></script>

<script type="text/javascript">
Ext.onReady(function() {

    var myCallback = function(btn, text) {
        alert('You pressed '  + btn);
        if (text) {
            alert('You entered : ' + text)

       title      : 'Hold on there cowboy!',
       msg        : 'Are you sure you want to reboot the internet?',
       width      : 300,
       buttons    : Ext.MessageBox.YESNOCANCEL,
       fn         : myCallback,
       icon       : Ext.MessageBox.ERROR

<div id='div1'>asdf</div>


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