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Open href link in popup

I'm trying to open the link in popup, i've write this static html code :
<a href="http://www.google.com" target="popup"
onclick="window.open('http://www.google.com','popup','width=600,height=600');
return false;"> Open Link in Popup
</a>
this code works, it open the link in popup.
But, if i want to add this code in javascript (with jquery) like this :
$('#services').append("<li><a href='http://www.google.com' target='popup' onclick='window.open('http://www.google.com','popup','width=600,height=600'); return false;'>Open Link in Popup</a></li>");
The link is opened in new tab and not in popup.
Why ?

Check this example on jsfiddle - Problem is in quotes
$('#services').append("<a href='http://www.google.com' target='popup' onclick=window.open('http://www.google.com','popup','width=600,height=600'); return false;>Open Link in Popup</a>");

You missed to escape the quotes in onClick of your jQuery. Update the script as below.
$('#services').append("<li>Open Link in Popup</li>");

Change your algorithm, instead of putting the javascript inside onclick, add a class or ID, with data-, so you can attach your jQuery event handler on that class/ID, and use the data to create new window. Imagine the data as data-destination="http://www.destination".
That should fix your problem.

Completely delete all instances of a div with a specific class using javascript/jquery?

I am using Popup.js by Toddish.
http://docs.toddish.co.uk/popup/demos/
Long story short, the popup plugin creates divs by default given the classes ".popup_back" and ".popup_cont".
I have another button I wish to press which should completely delete the added divs with those classes after they have been generated and added to the html. As if they never even existed. Surely this is possible?
I have tried running a function which simply runs:
$(".popup_back").remove();
$(".popup_cont").remove();
As shown in this example:
http://www.w3schools.com/jquery/tryit.asp?filename=tryjquery_dom_remove
Unfortunately despite the code running, the actual divs are never deleted as required.
Any ideas? I am new to this kind of thing and have googled around and read a lot about DOM etc but am yet to crack it.
Thanks
EDIT:
In reply to the comments:
The Javascript:
function removePopups() { // This function is called to remove the popups.
console.log("removing...");
$(".popup_back").remove();
$(".popup_cont").remove();
}
function func(url) { // url is the url of the image to be displayed within the popup.
removePopups(); // As soon as the function casillas is called, removePopups is used to remove any existing instances of the divs.
$('a.theimage').popup({ // This is where the Popup plugin is utilised.
content : $(url),
type : 'html'
});
}
The HTML:
<a class="theimage" onclick="func('image/image1.jpg')" href="#" >
Long story short, an image is displayed in the popup.
I think the issue is that the popup plugin runs due to the class but the function func is never actually run when the click occurs. However simultaneously "removing..." still prints out in the console which tells me that the function IS being executed. The problem is I want the popup plugin to run together with the javascript function. Is there a solution for this conflict?

Your implementation should really be as simple as this:
<a class="theimage" href="#" >Open</a>
Bind the popup creation to your popup link:
$('a.theimage').popup({
content : 'image/image1.jpg',
type : 'html'
});
I'm speculating here, but what might be happening is that you're invoking the popup twice by binding the popup() call to a click handler in your markup. The popup plugin already binds the popup creation to a click event.
View working demo. Note the 3 external resource: the popup CSS, the popup JS, and the jQuery JS.

Use href NOT onClick in hyperlink - Javascript

I have the following HTML that pops up a window when I click the 'Open Sesame' link:
Open Sesame</li>
However, I was wondering is it possible I could remove the 'onClick' part and just have the javascript within the href & still get the same new window effect. Is this possible?
Many thanks for any pointers

Yes you can:
Open Sesame
http://jsfiddle.net/Curt/NqfMX/
However, I would recommend an event listener for this. It makes your HTML code much tidier and seperates the function from the HTML design:
<a class="opensesame" href="/about-us/" title="Find out About Us">Open Sesame</a>​​​​​​​​​​​​​​​​​​​​​​
​$(function(){
$("a.opensesame").click(function(e){
e.preventDefault();
window.open('/about-us/','1329304840803','width=1050,height=500,toolbar=0,menubar=0,location=0,status=1,scrollbars=1,resizable=1,left=0,top=0');
});
});​
http://jsfiddle.net/Curt/NqfMX/1/

how to prevent popup javascript onclick event

i have link
<a onclick="return package_tour_order(14400287396);" href="javascript:;">advanced</a>
<a>doit</a>
need to get value from onclick only ID nubmer, but this
return package_tour_order(14400287396) is javascript function that popup new window with informationabout that ID
if i run this code
$('a:contains("advanced")').attr('onclick').match(/\d+(?=\))/)[0]
it works fine but when i run in my project with that javascript function(this function is loaded from another site) its does not work and popup window
i need to disable onclick somehow and get only that ID number, how can i doo that?

Don't make it a link. Make it a span or whatever. Also... what do you mean by "function is loaded from another site". If the script is loaded that should not influence things.

What is target="_new"? validator giving error

What is target="_new"? Validator is raising an error..
How do you do this with jquery because Validator is raising an error.
On the same page, I have target="_new" and target="_blank". target="_new" is in that form code which i received from email newsletter company.
I'm using this for target="_blank"
$(function() {
$('a[href^=http]').click( function() {
window.open(this.href);
return false;
});
});
What should i do for target="_new"
Update: 1 min Ago
upon clicking on submit button i want to open a page in new window to pass validation how to do this in jquery as i'm doing for other external link.
update:
this is code
<form method="post" class="form-wrapper" action="http://sitename.com/form.php">

There is no such thing as target="_new". Using this will simply open the link in a new window called "_new". You might notice that clicking on a link with target="_new" will open a new window (or tab) but then a second link will open in the same window (or tab), rather than opening a second one as you'd probably expect.
Personally, I don't think you should be specifying target="_blank" at all - let the user choose.

target="_blank" is invalid in XHTML (actually, the entire target attribute is invalid). If you want a link to open in a new window (usually a bad idea, in my opinion) and validation is important to you, the only way to do it is with javascript (like you did).

This is an attribute for a(anchor) tag, which let you open the page on the same window or in a new window.