separate window at center of screen

[kalaverdy]

I need, when i clicking on link, new separate window opened at center of screen. How can i do that?

[A1ien51]

function PopUp(xPopUpUrl){
var intWidth = 400;
var intHeight = 300;
var ScreenWidth=window.screen.width;
var ScreenHeight=window.screen.height;
placementx=(ScreenWidth/2)-(intWidth/2);
placementy=(ScreenHeight/2)-((intHeight+50)/2);
winPop=window.open(xPopUpUrl,"","width="+intWidth+",height="+intHeight+",resizable=1,left="+placementx+",top="+placementy+",screenX="+placementx+",screenY="+placementy+",");
}