function displayWindow(url, width, height) {
        var Win = window.open(url,"displayWindow",'width=' + width + ',height=' + height + ',resizable=0,scrollbars=yes,menubar=no, toolbar=no, titlebar=no' );
}

function potwierdz(info){
    input_box = confirm(info);
    if (input_box == true) {
        return true;
    }
    else {
        return false;
    }
}