var NS4 = (document.layers) ? true:false;

var NS6 = (!document.layers)&&(navigator.userAgent.indexOf('Netscape')!=-1) ? true:false;

var IE4plus = (document.all) ? true:false;

var Mozilla = (document.layers) ? true:false;



function OpenWin() {

    var topPosition;

    var leftPosition;

    var PageHeight;

    var addr = arguments[0];

    var w = arguments[1];

    var h = arguments[2];

    var name = "newwin";

    if (NS4 || NS6) {

        PageHeight = window.innerHeight;

        if (PageHeight < 500) {

            topPosition = 161;

            leftPosition = 35;

        } else if (PageHeight < 620) {

            topPosition = 161;

            leftPosition = 35;

        } else {

            topPosition = 161;

            leftPosition = 35;

        }

        newwin = window.open(addr, name, "height=" + h + ",width=" + w + ",screenY=" + topPosition + ",screenX=" + leftPosition + ",scrollbars=yes,resizable=yes");

    } else {

        PageHeight = screen.availHeight;

        if (PageHeight < 600) {

            topPosition = 161;

            leftPosition = 35;

        } else if (PageHeight < 800) {

            topPosition = 161;

            leftPosition = 35;

        } else {

            topPosition = 161;

            leftPosition = 35;

        }

        newwin = window.open(addr, name, "height=" + h + ",width=" + w + ",top=" + topPosition + ",left=" + leftPosition + ",scrollbars=yes,resizable=yes");

    }

}