javascript popup window onclick example

pop-up a window when the user clicks a button

stackoverflow.com › questions › 32147463 › pop-up-a-window-when-the-user-clicks-a-button

mylink (the button's this) isn't a string, so you try to open mylink.href:

if (typeof(mylink) == 'string')
  href = mylink;
else 
  href = mylink.href;

But buttons don't have href properties, so it's as if you wrote:

window.open(undefined, 'about', 'width=400,height=200,scrollbars=yes');

which opens a blank page, as expected. If you want to open the same page as the link, use:

onclick="popup('newpopup.html', 'about');"

Answer from Paul Roub on Stack Overflow

JavaScript.info

javascript.info › tutorial › frames and windows

Popups and window methods

The open call returns a reference to the new window. It can be used to manipulate its properties, change location and even more. In this example, we generate popup content from JavaScript:

GeeksforGeeks

geeksforgeeks.org › javascript › how-to-open-a-popup-on-click-using-javascript

How to Open a Popup on Click using JavaScript ? - GeeksforGeeks

August 5, 2025 - <!DOCTYPE html> <html> <head> <title>Using display property</title> <style> #popupDialog { display: none; position: fixed; top: 50%; left: 50%; transform: translate(-50%, -50%); padding: 20px; background-color: #fff; border: 1px solid #ccc; box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1); z-index: 1000; } #overlay { display: none; position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: rgba(0, 0, 0, 0.5); z-index: 999; } h1 { color: green; } </style> </head> <body> <h1>GeeksforGeeks</h1> <h3>Using display property</h3> <button onclick="popupFn()"> Open Popup </button> <div id="overla

Videos

16:52

YouTube

How To Make A Popup | HTML, CSS & JavaScript - YouTube

Build a Popup with JavaScript | 1-Minute Tutorial - YouTube

JavaScript Basics - how to make popup window with onclick method ...

July 26, 2018

youtube.com

How To Make A Popup Using HTML, CSS And JavaScript ...

15:40

YouTube

How To Make A Popup Using HTML, CSS And JavaScript | Create a Modal ...

March 9, 2022

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Stack Overflow

stackoverflow.com › questions › 32147463 › pop-up-a-window-when-the-user-clicks-a-button

javascript - pop-up a window when the user clicks a button - Stack Overflow

Top answer

1 of 4

mylink (the button's this) isn't a string, so you try to open mylink.href:

if (typeof(mylink) == 'string')
  href = mylink;
else 
  href = mylink.href;

But buttons don't have href properties, so it's as if you wrote:

window.open(undefined, 'about', 'width=400,height=200,scrollbars=yes');

which opens a blank page, as expected. If you want to open the same page as the link, use:

onclick="popup('newpopup.html', 'about');"

2 of 4

Try this simple piece of code:

<script>
   function fullwindowpopup(){
      window.open("newpopup.html","bfs","fullscreen,scrollbars")
   }
</script>

<center>
    <form>
        <input type="button" onClick="fullwindowpopup()" value="CLICK HERE">
    </form>
</center>

Quackit

quackit.com › javascript › popup_windows.cfm

JavaScript Popup Windows

You can put the above code into ... a popup window. Doing this allows you to cut down on the amount of code you use when using popups. Here's a working example. ... The above script creates a function that accepts a parameter called "url". You can now call the function in your HTML as follows. ... Here, we create a normal HTML link, but we also add the onclick event handler to trigger our JavaScript ...

Stack Overflow

stackoverflow.com › questions › 22306353 › how-to-open-a-popup-window-in-javascript-using-onclick

How to open a popup window in javascript using onclick? - Stack Overflow

Top answer

1 of 4

Just use window.open:

var referenceToNewWindow = window.open(url, name, features);

2 of 4

function popup(mylink, windowname, w, h){
    if (! window.focus)return true;
    var href;
    if (typeof(mylink) == 'string')
       href=mylink;
    else
       href=mylink.href;
    window.open(href, windowname, "width="+w+",height="+h+",scrollbars=yes,toolbar=no" );
    return false;
}

 <a href="http://www.example.com"  onClick="return popup(this, 'Title', '400', '500')">Link</a>

HTML.com

html.com › javascript › popup-windows

Popup Windows Made Easy: Here's The JavaScript Code To Copy And Paste »

March 19, 2020 - The URL of the page being linked to is in the HREF attribute. We’ve added an additional attribute called onClick. Copy the code as it is into your link, with only a small modification. The second argument of the popup() — ‘notes’ — indicates name of the popup window.

W3Schools

w3schools.com › howto › howto_js_popup.asp

How To Create Popups

Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, Python, PHP, Bootstrap, Java, XML and more.

W3docs

w3docs.com › learn-javascript › popups-and-window-methods.html

Mastering JavaScript: Comprehensive Guide to Popups and Window Methods

When clicked, it opens a new popup window with dimensions 400x400 pixels and displays a welcoming message. Controlling the content and behavior of popups is crucial for ensuring they contribute positively to the user experience without being ...

Find elsewhere

Google Bing Mojeek

Quackit

quackit.com › html › html_editors › scratchpad

Javascript Popup Window Onclick

Preview HTML code with this online HTML viewer. javascript popup window onclick.

W3docs

w3docs.com › javascript

How to Create a Popup Form Using JavaScript

let modalBtns = [...document.querySelectorAll(".button")]; modalBtns.forEach(function (btn) { btn.onclick = function () { let modal = btn.getAttribute('data-modal'); document.getElementById(modal).style.display = "block"; } }); let closeBtns ...

Stack Overflow

stackoverflow.com › questions › 32990638 › javascript-popup-box-with-onclick-event

html - javascript popup box with onclick event - Stack Overflow

Top answer

1 of 1

If I understand correctly you want to know how onclick event works in JavaScript, if that is the case as your question is not entirely clear, try something to the effect of the following:

<!DOCTYPE html>
<html>
<body>

<p>Click "Try it" to execute the displayDate() function.</p>

<button id="myBtn">Try it</button>

<p id="demo"></p>

<script>
document.getElementById("myBtn").onclick = displayDate;

function displayDate() {
    document.getElementById("demo").innerHTML = Date();
}
</script>

</body>
</html>

W3Schools

w3schools.com › howto › howto_css_modals.asp

How To Make a Modal Box With CSS and JavaScript

Learn how to create a Modal Box with CSS and JavaScript. A modal is a dialog box/popup window that is displayed on top of the current page: Open Modal

Mobiscroll

demo.mobiscroll.com › javascript › popup

Javascript Popup Examples | Mobiscroll

4 weeks ago - Pop-over examples with customizable content, button configuration and behavior. For vanilla JS to use everywhere. Last update: Mar 17, 2026

QuirksMode

quirksmode.org › js › popup.html

JavaScript - Popups

First check if the browser supports ... the new window. ... Finally we return false. This is to prevent the browser from following the actual link. ... The normal link leads to the page you want to show, while the popup script is called in the onclick event handler. When the script is called, it returns false to prevent the browser from following the link. The trick is that when JavaScript is disabled ...

PopupSmart

popupsmart.com › popupsmart conversion rate optimization & digital marketing blog › how to build a popup that opens on a button click

How to Build a Popup That Opens on a Button Click

February 17, 2026 - // Get the modal var modal = ... document.getElementsByClassName("close")[0]; // When the user clicks the button, open the modal btn.onclick = function() { modal.style.display = "block"; } // When the user clicks on (x), close the ...

Quora

quora.com › How-do-you-create-a-new-popup-window-in-JavaScript

How to create a new popup window in JavaScript - Quora

Answer (1 of 2): I would suggest you to use window.open() Here is the syntax and parmeter of window.open(): window.open(URL, windowName, [windowFeatures]) URL: The URL of the page to open.

C# Corner

c-sharpcorner.com › blogs › javascriptopen-new-popup-window-on-button-click-event1

Javascript-Open new Popup Window on button click event

April 29, 2020 - <script type="text/javascript"> ... To Open : <input type="text" name="txtpath"/> <input type="button" value="Open" name="btnOpenPopup" onClick="OpenNewWindow(txtpath.value)" /> </FORM> </body> </html> People also reading ...

Javascript-array

javascript-array.com › scripts › window_open

Javascript window.open, also fullscreen and centered popup window « JavaScript DHTML Tutorials

<a href="javascript: void(0)" onclick="window.open('popup.html', 'windowname2', 'width=200, \ height=77, \ directories=no, \ location=no, \ menubar=no, \ resizable=no, \ scrollbars=1, \ status=no, \ toolbar=no'); return false;">Click here for ...

Laurentian

web.cs.laurentian.ca › rsgrewal › c2206 › javascript › examples › windows › windows.html

Opening a pop up window

Close pop up window and click the following link to open it again. ... This method uses a special form of link which just executes a javascript function. ... Other useful features are menubar="yes", resizable="yes", scrollbars="yes", toolbar="yes", and status="yes". Note that the javascript designers cannot spell: use resizable not resizeable. The default values are "no". Click the following link to see a popup window with these values turned on.

Stack Overflow

stackoverflow.com › questions › 14351771 › open-popup-window-using-javascript

Open Popup window using javascript - Stack Overflow

Top answer

1 of 3

Change the window name in your two different calls:

function popitup(url,windowName) {
       newwindow=window.open(url,windowName,'height=200,width=150');
       if (window.focus) {newwindow.focus()}
       return false;
     }

windowName must be unique when you open a new window with same url otherwise the same window will be refreshed.

2 of 3

To create a popup you'll need the following script:

<script language="javascript" type="text/javascript">

function popitup(url) {
newwindow=window.open(url,'name','height=200,width=150');
if (window.focus) {newwindow.focus()}
return false;
}


</script>

Then, you link to it by:

  <a href="popupex.html" onclick="return popitup('popupex.html')">Link to popup</a>

If you want you can call the function directly from document.ready also. Or maybe from another function.