function popUp(URL) {
    var iMyWidth;
    var iMyHeight;
    //half the screen width minus half the new window width (plus 5 pixel borders).
    iMyWidth = (window.screen.width / 2) - (400 + 10);
    //alert(window.screen.width);
    
    //half the screen height minus half the new window height (plus title and status bars).
    iMyHeight = (window.screen.height / 2) - (375 + 50);
    //window.open(URL, 'onlineinquiry', 'toolbar=0,scrollbars=1,location=0,statusbar=0,menubar=0,resizable=1,width=800,height=750');
    //window.open(URL, 'windowname', 'width=400,height=200,scrollbars=yes');

    window.open(URL, 'onlineinquiry', 'toolbar=0,scrollbars=1,location=0,statusbar=0,menubar=0,resizable=1,width=800,height=750');
    return false;
}