How to center a new- opened window page?

Question

let's say i have 2 jsp files. i have a hyperlink in page 1, if i click that hyperlink, a pop up window will appear, how will i let that pop up window appear in center?
thanks

Answer 1

you can do it by javascript...
function centerWindow() {
    if (document.all)
        var xMax = screen.width, yMax = screen.height;
    else
        if (document.layers)
            var xMax = window.outerWidth, yMax = window.outerHeight;
        else
            var xMax = 640, yMax=480;
    var xOffset = (xMax - 200)/2, yOffset = (yMax - 200)/2;
    window.open('page.html','windowname',
    'width=200,height=200,screenX='+xOffset+',screenY='+yOffset+',
    top='+yOffset+',left='+xOffset+'');