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Jquery, retrieving data from externel url and parsing result

I have some xml data as result of $ajax call.
The question is, how can i get contents (title) of first ?
Thank You for help.

You can use something like
$.ajax({
type: "GET",
url: "you url",
dataType: "xml",
success: function(xml) {
var value = $(xml).find('title').text(); //if only one title node
}
});
Explaination: After getting the response from the url in xml you can simply access the xml response as a Jquery object and use any function of jquery on it.
To access Only the first element use :first selector on it to access the first title element.
eg: var value = $(xml).find('title:first').text();

Ajax loading image error

my question is very simple. I have drafted the code as follow for showing the loading image when the form is being posted. The loading image can be shown properly. However, it cannot hide automatically after the result is returned. May i know what is the error?
HTML
<div id="loading"></div>
Ajax
function email_subscribe(){
$('#loading').html('<img src="loading.gif"> loading...');
$.ajax({
type: 'post',
url: 'index.php?subscribe',
dataType: 'html',
data:$("#subscribe").serialize(),
success: function (html) {
$('#loading').html();
eval(html);
}});
}

You're just calling the .html() method without any parameters (which serves as a getter). To achieve what you're looking for here, you need to at least pass in like an empty string to set and overwrite existing content.
$('#loading').html('');

I also think you should not use eval....
...and yes call .html() with an argument like:
$('#loading').html(" ");
or
$('#loading').html(" ");

Retrieving HTML file using AJAX

I have a Javascript application and I need to retrieve an HTML file to template it. The way I am doing this now is:
var _$e = null;
$.ajax({
type: "GET",
url: "/static/jobs_overview.html",
async: false,
dataType: "xml",
success: function (xml) {
_$e = $(xml.documentElement);
}
});
This does seem to work, but for some reason, I am not getting a proper jQuery object in _$e. I know that because the styling is done by jQuery is getting lost at some point, but also, when I set a breakpoint in success, here is what I see:
> _$e
[<div class=​"hello" style=​"background-color:​#FFD700;​height:​200px;​width:​100px;​">​<p>​ Hi ​</p></div>​]
> _$e.width()
TypeError: Cannot read property 'position' of null
However, when I copy the HTML string manually and convert it to a jQuery object as in success, the output is:
> $('<div class="hello" style="background-color:#FFD700;height:200px;width:100px;"><p> Hi </p></div>').width()
100
Seems like the xml object returned isn't getting converted properly into jQuery (or not all attributes of the object are being read properly by jQuery -- given that the HTML is rendering but styling isn't).
The xml object is:
> xml
#document
<div class=​"hello" style=​"background-color:​#FFD700;​height:​200px;​width:​100px;​">​…​</div>​
Any ideas how to get the xml (or the HTML file) rendered as a jQuery object properly?

Could it be because you're grabbing the datatype XML? Have you tried setting your datatype to HTML (or nothing) and just do this (ignoring the .documentElement and just assuming the whole glomp is your HTML):
$.ajax({
type: "GET",
url: "/static/jobs_overview.html",
async: false,
dataType: "html",
success: function (data) {
_$e = $(data); // we are getting back HTML,
console.log(_$e.width()); // jQuery is fine with html globs
}
});

This is likely because you are pulling it in as XML. Try setting the dataType to html and see if that makes any difference.
It also sounds like .load() might better fit your needs: http://api.jquery.com/load/

Trying to set variable as part of URL in jquery ajax post

So I am trying to do a post using jQuery.ajax instead of an html form. Here is my code:
$.ajax({
type: 'POST', // GET is available if we prefer
url: '/groups/dissolve/$org_ID',
data: data,
success: function(data){
$('#data_box').html(data);
}
});
Here is my problem:
When this was in an html form, the $org_ID that was part of the URL would actually pull the variable and send it as part of the URL. Now that this is in jquery, its just sending $org_ID as text. How can I get this to figure out what the variable, $org_ID is? I tried declaring it in the javascript but I am brand new to jquery/javascript and don't really know what i'm doing.
Thanks!

Are you rendering this in PHP? In that case you need to do:
url: '/groups/dissolve/<?php print $org_ID; ?>'
Otherwise, you need to do something like
var org_id = 'foo';
// or
var org_id = '<?php print $org_id ?>';
$.ajax({
type: 'POST', // GET is available if we prefer
url: '/groups/dissolve/'+org_ID,
data: data,
success: function(data){
$('#data_box').html(data);
}
});
Unlike PHP, you can't interpolate variables in javascript, you have to concatenate them with the string.
If you're trying to POST a variable (org_id) then you should put it in data:
data['org_id'] = org_id;
$.ajax({
type: 'POST', // GET is available if we prefer
url: '/groups/dissolve/',
data: data,
success: function(data){
$('#data_box').html(data);
}
});
While you can concatenate params onto your url to send them in an HTTP request, putting them in a data object not only lets jQuery do more work for you & escape HTML entities etc (and keep your code cleaner), but also allows you to easily debug and play around with ajax() settings.

It's not clear in the question where your data comes from, but you can use something like:
url: '/groups/dissolve/'+orgId,
or:
url: '/groups/dissolve/?orgId='+orgId,

Short answer, concatinate
url: '/groups/dissolve/' + $org_ID

Change window location Jquery

I am using ajax to load my website content and want to update the window location when ajax is successful.
How can I update the window location to "/newpage"?? I need users to be able to go back and to refresh. Is this possible??

I'm assuming you're using jquery to make the AJAX call so you can do this pretty easily by putting the redirect in the success like so:
$.ajax({
url: 'ajax_location.html',
success: function(data) {
//this is the redirect
document.location.href='/newpage/';
}
});

You can set the value of document.location.href for this purpose. It points to the current URL. jQuery is not required to do this.

you can use the new push/pop state functions in the history manipulation API.

Assuming you want to change the url to another within the same domain, you can use this:
history.pushState('data', '', 'http://www.yourcurrentdomain.com/new/path');

If you want to use the back button, check this out. https://stackoverflow.com/questions/116446/what-is-the-best-back-button-jquery-plugin
Use document.location.href to change the page location, place it in the function on a successful ajax run.

I'm writing common function for change window
this code can be used parallel in all type of project
function changewindow(url,userdata){
$.ajax({
type: "POST",
url: url,
data: userdata,
dataType: "html",
success: function(html){
$("#bodycontent").html(html);
},
error: function(html){
alert(html);
}
});
}