var
    openWindow = null;
    manufacturer = navigator.appName;
    IE = null;
 
    if (manufacturer.indexOf('Netscape')>= 0)
      IE = false
    else
      IE = true;

function openWin(mode, openURL, W, H) {

    var L, T, newWin, opt;

    T = screen.availHeight - H;
    T = T/2 - T%2;
    L = screen.availWidth - W;
    L = L/2 - L%2;

    opt = 'toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=yes,resizable=yes,copyhistory=no,width='+W+',height='+H+',top=';

    if (mode == 'forum') {
        T = screen.availHeight - H - 50;
        L = screen.availWidth - W - 40;

        if (openWindow == null){
            openWindow = window.open(openURL,'_blank','toolbar=no,location=no,directories=no,status=no,menubar=yes,scrollbars=yes,resizable=yes,copyhistory=no,width='+W+',height='+H+',top='+T+',left='+L);
        } else {
            if (openWindow.closed == true) {
                openWindow = window.open(openURL,'_blank', opt+T+',left='+L); 
            } else openWindow.location.assign(openURL);
        };
        openWindow.focus();
    } else if (mode == 'mess') {
        newWin = window.open(openURL,'_blank' ,opt+T+',left='+L);
//        newWin.focus();
    } else if (mode == 'pass') {
        if (document.forms["Info"].elements["login"].value != "") {
            openURL = openURL + document.forms["Info"].elements["login"].value;
        };         
        newWin = window.open(openURL,'_blank' ,opt+T+',left='+L); 
    } else if (mode == 'regist') {
        if (document.forms["regist"].elements["login"].value != "") {
            openURL  = openURL + document.forms["regist"].elements["login"].value;
        };         
        newWin = window.open(openURL,'_blank' ,opt+T+',left='+L);
    } else if (mode == 'mail') {
        newWin = window.open(openURL,'_blank' ,opt+T+',left='+L);
    };
};