I have developed a discussion popup on my website , now I want my customers to use it on their website, so they just copy the code from their dashboard on my website and embed that code into their websites so the discussion popup from my website load into their website so all the comments and data from my system load into there so they could submit comments and replies through this popup into my system ,

I am not a javascript expert , but I have seen lots of providers do this like facebook allow u to add their messanger chat popup into your website so your customers can chat with you, i'm in facebook place now and would like to have my users implement my popup into their website so they could use my comments service and connect with their customers, hope this is clear enough

EDIT

This could be something like this chat popup in this pic, as you see, the chat popup is loaded from a third party website into the website below , so the website owner can connect with their customers through this chat popup connected the provder's system.

I have tried to do this with in Iframe , but if u actually use this code into your website u will get what i mean , the iframe will restrict other content even if the popup is closed , so I thought there might be another solution

<iframe src="http://dev.zedmanager.com/test_pop" style="
position: fixed;
top: 0px;
bottom: 0px;
right: 0px;
width: 100%;
border: none;
margin: 0;
padding: 0;
overflow: hidden;
z-index: 999999;
height: 100%;
"> </iframe>