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How to get text data from webpage

I am trying to get data form a website about institution using XMLHttpRequest but rather than data I am getting error page please help
My code:-
var url = '[https://tsecet.nic.in/institute_details.aspx?iCode=JNTH][3]';
var xhttp = new XMLHttpRequest();
xhttp.onreadystatechange = function() {
if (this.readyState == 4 && this.status == 200) {
// Typical action to be performed when the document is ready:
document.write( this.responseText);
}
}
xhttp.open("GET", url , true);
xhttp.send();
Target Web Page Address:-
https://tsecet.nic.in/institute_details.aspx?iCode=JNTH
If I try to open
https://tsecet.nic.in/Default.aspx>>then click on >>
institute profile >> then click on>>JNTH
Then I am able to get data in browser Else I am redirected to an error page
Please help me...
Note
I am trying to get this data from a different website and a different
domain This website is scripted in aspx

The AJAX request you're trying to run can't do that, as the pages have the X-XSS-Protection: 1 header, blocking such requests. It looks as if they allow the internals URIs to launch only within a "frame" set by the homepage. Unfortunately, I can't tell for sure. In short, you are going to need another approach.

XHttpRequest 2 page progress not working

Based on reading some documents from mozilla i just wanted to try out the html5 "xhr2" (so called) functionality. SO i used this code...
var oReq = new XMLHttpRequest();
function transferComplete(evt) {
alert("The transfer is complete.");
}
oReq.upload.addEventListener("load", transferComplete, false);
oReq.open('POST',"https://www.google.com",true);
I placed the above code in the head section of my page , but the page always loads but none of the events are fired..
Could someone please tell me what im doing wrong ....
Thanks guys

there's couple problems in your code.
you need to remove keyword upload before addEventLIstener
you need to call send() method on oReq object
cross-origin policy won't allow you to load https://www.google.com, but you still can load documents on the same domain
check this code:
var oReq = new XMLHttpRequest();
function transferComplete(evt) {
alert("The transfer is complete.");
}
oReq.addEventListener("load", transferComplete, false);
oReq.open('GET',"/index.html", true);
oReq.send();
try it on JSFiddle

Ajax refresh does not refresh the Java script

I have a JSP page that refreshes every 5 seconds Using ajax.
The page i am calling having javascript that is not getting refreshed .
Please tell me how to achieve that.
Below is the code i am using to refresh that page .
refresh is the name of the div where i am displaying the data.
<script type="text/javascript">
function AutoRefresh() {
var xmlHttp;
try {
xmlHttp = new XMLHttpRequest(); // Firefox, Opera 8.0+, Safari
} catch (e) {
try {
xmlHttp = new ActiveXObject("Msxml2.XMLHTTP"); // Internet Explorer
} catch (e) {
try {
xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");
} catch (e) {
alert("No AJAX");
return false;
}
}
}
xmlHttp.onreadystatechange = function () {
//alert("hi");
if (xmlHttp.readyState == 4) {
document.getElementById('TotalRoutes').innerHTML = xmlHttp.responseText;
setTimeout('AutoRefresh()', 10 * 1000); // JavaScript function calls AutoRefresh() every 3 seconds
}
}
xmlHttp.open("GET", "QAGENIE.jsp", true);
xmlHttp.send(null);
}
</script>
Here js files in the QAGENIE.jsp page is not getting refreshed on the ajax call

I think you are not calling AutoRefresh function first time. so nothing will be execute. and if you are calling from outside of your code which you gave here, then please post whole web page code in question.

setTimeout(AutoRefresh,5000); for every 5 seconds
if (xmlhttp.readyState==4 && xmlhttp.status==200)
window.onload = AutoRefresh();

When you call document.getElementById('TotalRoutes').innerHTML=xmlHttp.responseText;, script tags inside the "QAGENIE.jsp" are not executed, that's why:
js files in the QAGENIE.jsp page is not getting refreshed.
Since the question is tagged with jQuery, you could try $.ajax and $.html. Like this:
function AutoRefresh(){
$.ajax({
url:"QAGENIE.jsp"
})
.done(function(response){
$("#TotalRoutes").html(response);
setTimeout(AutoRefresh,10*1000);
});
}
AutoRefresh(); //call this to trigger the first call
$.html automatically parses and executes script tags in the response HTML.
There is 1 more thing to notice is browser cache, if your js files are cacheable (as it usually does by the cache response header from server), the js files may be served from the cached. If you need to always refresh with new js files, ensure your js files are not returned with a cache header, or try to append a random string at the end of the script tags. Like this:
<script src="yourFile.js?[randomstring]"></script>

Ajax Function Only Working Part of the Time

I am using the following Ajax function format:
var xmlhttp;
function addAddress(str)
{
if (window.XMLHttpRequest)
{
xmlhttp = new XMLHttpRequest();
}
else
{
xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
}
xmlhttp.onreadystatechange = function()
{
if (xmlhttp.readyState == 4 && xmlhttp.status == 200)
{
//specific selection text
document.getElementById('info').innerHTML = xmlhttp.responseText;
}
}
var addAddress = "add";
xmlhttp.open("POST", "sys.php", true);
xmlhttp.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
var queryString = "&addAddress=" + addAddress;
xmlhttp.send(queryString);
}
function GetXmlHttpObject()
{
if (window.XMLHttpRequest)
{
return new XMLHttpRequest();
}
if (windows.ActiveXObject)
{
return new ActiveXObject("Micorsoft.XMLHTTP");
}
return null;
}
Up until now, all of my Ajax functions, like the one above, have been running fine. However, now the function will work only sometimes. Now, sometimes I will have to click the onclick event a couple times to execute the function or the function will just hang, and then after about 4 minutes it will execute.
I tested parts of the function and found that the issue lies some where at the:
if (xmlhttp.readyState == 4 && xmlhttp.status == 200)
{
alert(xmlhttp.status);
//specific selection text
document.getElementById('info').innerHTML = xmlhttp.responseText;
}
When the function works, I can alert(xmlhttp.status) and get 200. However, when it's not working, the alert box doesn't even trigger. In fact, nothing happens, not even an error.
Could this be a server issue? I am kind of thinking my website got hacked, but I cannot find any issues accept that the Ajax functions are not executing properly.
Lastly, I do not get this problem on my localhost, it's only happening on the live website.
Any help will be greatly appreciated.
Thanks

First just confirm that the addAddress function is actually being called when you click the button or control that should trigger it.
Just a simple alert in the first line like this would work:
function addAddress(str)
{
alert('addAddress has been called!')
....
}
If you don't get the alert, make sure there isn't a javascript error on the page that is preventing the function from running. In firefox you press CTRL+SHIFT+J to see the error console for example.
If that part is working, trying putting the URL for the ajax request directly into your browser and diagnose it that way.
Looks like you are requesting this url with ajax:
sys.php&addAddress= (address goes here)
Check that the page will load directly in your browser. If not, the problem is not the ajax request, but something with the sys.php page itself - which you can then drill down on.
Hope that helps!

This wasn't the answer I was expecting, but I ended up having my web host (GoDaddy) change servers, and that resolved the problem. For almost a year, I was running IIS7 with PHP. Since I had never run into any problems, I just continued using that server. After the Ajax latency issue and not being able to figure out a solution, I figured I would just switch over to Apache. After the change, everything started running smoothly again.
I am thinking maybe there was a software update that I was not notified about. Or, maybe my website was getting hit with a DDoS, which was decreasing the performance of my Ajax requests. Lastly, maybe someone got into IIS and changed a setting. I don't know, all I know is that the minute the server was changed over to Apache was when the website started running normally again.
Thanks for everyone's suggestions.

Javascript: Find browser windows open with the same domain

Is there a way to get a list of all the open browser windows if they are from the same domain as the window that is trying to get the list?

In general, no.
Unless there is a "connection" between the windows (e.g., one window opened all the other using window.open), browser windows can't interact because of security reasons.
Edit:
If you assign a name to your window, you can regain control over it after refreshing the parent page.
windowVar = window.open('somePage.html', 'windowName'); opens a child window with name windowName.
After refreshing the parent page, windowVar = window.open('', 'windowName'); re-associates the variable windowVar with the window of name windowName.
Now, windowVar.location.href= 'logout.html'; lets you log out your user.
Edit:
Assuming you use PHP, you could do something like this:
Create logged.php with a function logged_in that verifies if the session ID is still valid.
<?php
if (isset($_GET['sid']))
if (logged_in($_GET['sid']))
echo "in";
else
echo "out";
?>
Include check() function in your pages.
function check()
{
var url = "http://redtwitz.com/test/logged.php?sid=" + sessionId;
var request;
try
{
request = new XMLHttpRequest();
}
catch(error1)
{
try
{
request = new ActiveXObject("Msxml2.XMLHTTP");
}
catch(error2)
{
request = new ActiveXObject("Microsoft.XMLHTTP");
}
}
request.open("GET", url, false);
request.setRequestHeader("User-Agent",navigator.userAgent);
request.send(null);
if(request.status==200)
if(request.responseText == "out")
window.location.href = "logout.html";
}
Call check function every 5 seconds.
<body onload="setInterval(check, 5000);">

Alternatively, you can implement Chrome extension and do your task by using extension api: http://code.google.com/chrome/extensions/tabs.html
But it will work in Chrome browser only.