Window pop up lock Main window

Question

Hello, I am developing a system in PHP but using some things in javascript on the front... the truth is that I still do not know much of javascript, so I wanted to know the following:

The situation is: I have a registration system that works on the home page. But there are links to generate new entries or edit them that open in a pop up window to perform the POST method. Everything is working perfectly, but if the user minimizes the pop up window, it will be hidden in the taskbar and will not appear even if he clicks again. This would cause less experienced users to be lost, in addition to taking more time...

What I wanted to know is if there is a way to block this pop up on the screen, forcing it to stay on the main page, without being able to be minimized... I did not find anything in this regard, so I do not know if it is possible. But I think a second alternative, which would already suit me well, would be when clicking on the link that generates the pop up, if it is minimized, it appears again in front of the user... But I don’t know how to do it ^^'

Code I’m using to generate the pop up:

function MM_openBrWindow(theUrl, winName, features) {
window.open(theUrl, winName, 'resizable=no, fullscreen=no, scrollbars=no, width=880, height=560, location=no, menubar=no, copyhistory=no, directories=no, status=no, toolbar=no');
}

<a href="javascript:void(0)" onClick="MM_openBrWindow('nova_encomenda.php','Nova_Encomenda','')">