<html>
    <head>
        <script type="text/javascript">
            function openPopup() {
                var pUrl="http://naver.com";
                var pName="zzz";
                var sizeX=1024;
                var sizeY=768;
                var posX=screen.availWidth/2-sizeX/2;
                var posY=screen.availHeight/2-sizeY/2;
                window.open(pUrl,pName,"width="+sizeX+",height="+sizeY+",top="+posY+",left="+posX);
            }
        </script>
    </head>
    <body onload="openPopup();">
    </body>
</html>