Opening a popup window in the middle of the screen

Question

I have this little script and this function. I need to open a popup window every 15 minutes, like a reminder. How can I put the target to be a popup window in the middle of the screen?

setTimeout(openUrl, 54000);
setInterval(openUrl, 54000);

function openUrl(){
   window.open('http://google.com');
}

Answer 1

You can modify the size of th opening window, if you do so, it'll be opening as a real popup

here's the code:

function openUrl(){
    window.open('http://google.com', 'test', 'height=100px;width=100px');

}

Answer 2

window.open has properties for the size and location. Example:

window.open('http://google.com', '_blank', 'height=400,width=400,top=400,left=400');

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