Hi Daniil
no luck.
After removing text,
Firefox = Ctrl + U
Popup window shows following text.
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<link rel="stylesheet" type="text/css" href="/extjs/resources/css/ext-all-embedded-css/ext.axd?v=21945" />
<title>
</title>
<script type="text/javascript" src="/extjs/adapter/ext/ext-base-js/ext.axd?v=21945"></script>
<script type="text/javascript" src="/extjs/ext-all-js/ext.axd?v=21945"></script>
<script type="text/javascript" src="/extnet/extnet-core-js/ext.axd?v=21945"></script>
<script type="text/javascript">
//<![CDATA[
Ext.net.ResourceMgr.init({id:"ResourceManager1",BLANK_IMAGE_URL:"/extjs/resources/images/default/s-gif/ext.axd",aspForm:"form1",theme:"blue",ns:"CompanyX"});Ext.onReady(function(){Ext.QuickTips.init();new Ext.form.FormPanel({id:"FormPanel1",renderTo:"CompanyX.FormPanel1_Container",items:{id:"TextField1",xtype:"textfield",fieldLabel:"dfdsfdf"},buttons:[{id:"btn",text:"Open Window",directEvents:{click:{fn:function(item,e){var params=arguments;Ext.net.DirectEvent.confirmRequest({control:this});},delay:20}}}],renderFormElement:false,url:"/samplecodefocus.aspx"});new Ext.Window({id:"winNewset",hidden:true,renderTo:Ext.get("form1"),height:300,width:400,items:{id:"frmWorkouts",xtype:"form",items:[{id:"txtrepeats",xtype:"numberfield",fieldLabel:"Repeats",width:257,maxLength:5,allowDecimals:false,allowNegative:false,decimalSeparator:"."},{id:"txtDistance",xtype:"numberfield",fieldLabel:"Distance",width:257,allowBlank:false,maxLength:8,allowDecimals:false,allowNegative:false,decimalSeparator:"."},{xtype:"compositefield",fieldLabel:"Interval",items:[new Ext.form.NumberField({id:"txtIntervals",xtype:"numberfield",fieldLabel:"Interval",width:100,note:"min (0-30)",noteCls:"NoteFont",maxLength:2,allowDecimals:false,allowNegative:false,decimalSeparator:".",maxValue:30.0,minValue:0.0}),new Ext.form.NumberField({id:"txtIntervalssec",xtype:"numberfield",fieldLabel:"Interval",width:100,note:"sec (0-59)",noteCls:"NoteFont",maxLength:2,allowDecimals:false,allowNegative:false,decimalSeparator:".",maxValue:59.0,minValue:0.0})]},{id:"txtDescription",xtype:"textfield",fieldLabel:"Description",width:257,allowBlank:false,maxLength:500},{id:"txtNotes",xtype:"textfield",fieldLabel:"Notes",width:257,maxLength:1000}],renderFormElement:false,url:"/samplecodefocus.aspx"},layout:"fit",title:"New Set",listeners:{show:{fn:function(item){this.items.get(0).items.get(0).focus(250);}}}});});
//]]>
</script>
</head>
<body>
<form name="form1" method="post" action="samplecodefocus.aspx" id="form1">
<div>
<input type="hidden" name="__EVENTTARGET" id="__EVENTTARGET" value="" />
<input type="hidden" name="__EVENTARGUMENT" id="__EVENTARGUMENT" value="" />
<input type="hidden" name="__VIEWSTATE" id="__VIEWSTATE" value="/wEPDwUJMjY2NDM1NTk4D2QWAgIDD2QWAgIFD2QWAmYPFgIeBWNsYXNzBQh4LWhpZGRlbmQYAQUeX19Db250cm9sc1JlcXVpcmVQb3N0QmFja0tleV9fFg0FEFJlc291cmNlTWFuYWdlcjEFCkZvcm1QYW5lbDEFClRleHRGaWVsZDEFA2J0bgUJd2luTmV3c2V0BRR1Y05ld1NldCRmcm1Xb3Jrb3V0cwUTdWNOZXdTZXQkdHh0cmVwZWF0cwUUdWNOZXdTZXQkdHh0RGlzdGFuY2UFDnVjTmV3U2V0JGN0bDAyBRV1Y05ld1NldCR0eHRJbnRlcnZhbHMFGHVjTmV3U2V0JHR4dEludGVydmFsc3NlYwUXdWNOZXdTZXQkdHh0RGVzY3JpcHRpb24FEXVjTmV3U2V0JHR4dE5vdGVzCSzfVxdmi8Yv0qRqrt0nm5khMc8=" />
</div>
<script type="text/javascript">
//<![CDATA[
var theForm = document.forms['form1'];
if (!theForm) {
theForm = document.form1;
}
function __doPostBack(eventTarget, eventArgument) {
if (!theForm.onsubmit || (theForm.onsubmit() != false)) {
theForm.__EVENTTARGET.value = eventTarget;
theForm.__EVENTARGUMENT.value = eventArgument;
theForm.submit();
}
}
//]]>
</script>
<div>
<input type="hidden" name="__EVENTVALIDATION" id="__EVENTVALIDATION" value="/wEWAgLvve3TCQLk1b+VAsyjPSOK6Wjm+AC70xoKn4FqPK+F" />
</div>
<div>
<div id="CompanyX.FormPanel1_Container">
</div>
</div>
</form>
</body>
</html>