link to open window - How to open it centered on the screen ?

I have the code below which I use to open a window. It usually opens on the upper left corner.
How can I open it in the center of the user's screen ?

<a href="javascript:;" onClick="MM_openBrWindow('forms_bridgecallblank.asp','form','scrollbars=yes,resizable=yes,width=1000,height=800')"><i class=" btn btn-white btn-sm fa fa-eye"></i></a>

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Big MontyWeb Ninja at largeCommented:
Try the following function to center your dialog:

function MyPopUpWin(url, width, height) {
    var leftPosition, topPosition;
    //Allow for borders.
    leftPosition = (window.screen.width / 2) - ((width / 2) + 10);
    //Allow for title and status bars.
    topPosition = (window.screen.height / 2) - ((height / 2) + 50);
    //Open the window., "Window2",
    "status=no,height=" + height + ",width=" + width + ",resizable=yes,left="
    + leftPosition + ",top=" + topPosition + ",screenX=" + leftPosition + ",screenY="
    + topPosition + ",toolbar=no,menubar=no,scrollbars=no,location=no,directories=no");

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Then call the function like so:

<a href="javascript:;" onClick="MyPopUpWin('forms_bridgecallblank.asp',1000, 800)"><i class=" btn btn-white btn-sm fa fa-eye"></i></a>

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AleksAuthor Commented:
Thanks. I will give it a try tonight.
AleksAuthor Commented:
There seems to be some kind of typo in the function.:

Microsoft VBScript compilation  error '800a0408' 

Invalid character 

/bluedot/Intranet/Tools/blankforms.asp, line 44 
function MyPopUpWin(url, width, height) {

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Big MontyWeb Ninja at largeCommented:
What's line 44?
AleksAuthor Commented:
<% function MyPopUpWin(url, width, height) {
AleksAuthor Commented:
nevermind .. :$ ... got it  :)
Big MontyWeb Ninja at largeCommented:
Put the function in your Javascript block, not in a server side block
AleksAuthor Commented:
Perfect !
Big MontyWeb Ninja at largeCommented:
Glad I could be of help :)
AleksAuthor Commented:
You always do.
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