How to open a pop up window with specified location through Javascript

Below is the javascript method that opens a popup with specific height,width,location etc

function openQuadPopup(val) {           
            var width = screen.width - 100;
            var height = screen.height - 100;
            var leftPos = (screen.width - width - 30) / 2;
            var topPos = (screen.height - height - 30) / 2;
            myWindow = window.open('TestPage.aspx?QueryStringValue=' + val, 'NameForPopup', 'menubar=0,resizable=0,width=' + width + ',height=' + height + "'");

            myWindow.moveTo(leftPos, topPos);          
        }