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Using cookies to auto-open a lightbox form per browser session

Using cookies to auto-open a lightbox form per browser session

This guide will show you how to use session cookies to automatically open a JotForm lightbox when a user first visits your web page. You will need access to a PHP enabled Webserver to host your web page to be able to create this effect.

1. Create your form. 

2. Grab the JotForm Lightbox code for your form by;

(a) clicking on Publish tab

(b) after clicking Embed tab, select the LightBox option.

(c) Copy and paste this code somewhere safe such as an open notepad document. For this example, we are only interested in the code between the two

3. We need to make a small change to this code to enable us to open our lightbox automatically; just change the openOnLoad function, it's after the width set, it should look like this openOnLoad:true .

4. Ok, now we are ready to transfer this code to your web page. Create a PHP file on your Webserver (as we are using PHP code to create this effect, your will page will use the .php extension.) Mine is called sessioncookie.php.

5. In this page, we begin by adding some PHP that will check for a session cookie if it doesn't exist it creates one and sets a variable that we will use later to know if we need to open our Lightbox form. If it already exists nothing is done (i.e no lightbox form will be displayed).

NOTE: When the browser window is closed, this cookie gets 'destroyed'.

Add this code at the very start of your webpage:


if(!isset($_COOKIE['beenhere'])) { 


 setcookie("beenhere", '1');




6. Now, we just need to add one final bit of PHP and our lightbox embed code that we created earlier in Step 3. At the end of our webpage, just before the closing tag, add the following: 

if ($showlightbox) { ?>


NOTE: If you looking to create this effect on your own web page with your own form, you need to change lightbox embed code (highlighted in blue text) to that of your own.

This code, using the variable mentioned earlier, adds the Lightbox code to our web page (and launches it) if no cookie was found. 

This is a very basic example web page showing these pieces on the code in place:

Questions? Please post it to our support forum or put it as a comment below!

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  • DestinationDelco

    Added the code above but my page still shows the lightbox everytime it loads.
    Here's my site:

  • damiancooper

    Hi can you help with my popup form. I have loaded it to a test page it all looks fine with a delay to open, but every refresh of the page it still loads the form.

  • WideScenes

    Hi , I tried the code as per instructions, however still appears each time page is refreshed within same browser session. can you my page to see if correct?

  • ncrs

    Is it possible to do this with my website, which was created using Weebly? If so, could you please provide instructions as to how to do it?

    Thank you in advance for taking the time to answer.

  • tidybooks

    Could you advise on how to get it to work within magento, the pop up part works fine having trouble with sessioncookie.php part. Thanks

  • Anil

    Kindly let me know how can i use this to open a particular page of my site. I need same code to open my signup page once a day.

    Thanks in advance.


  • nyeesha2007

    What if you dont want the cookie to be destroyed in the code above... What do I need to change? and the lightbulb code works fine in Chrome but not in Internet explorer what could possibly be the problem?

  • precisionsails

    Is there a solution for this that does not use php?

  • anudeep kumar

    every thing fine working but its coming on every page,once we click home page also its coming

  • clicksem

    nice guide thanks. what if the page we'll put the code is an asp page?