var properties = "menubar=no," +
                 "toolbar=no," +
                 "location=no," +
                 "directories=no," +
                 "status=no," +
                 "resizable=no," +
                 "top=150," +
                 "left=400";



function openwin_book_pl () {
    win_1 = window.open ("booking_pl.htm", "menu", properties + ",scrollbars=no,width=667,height=587");
}




function openwin_book_en () {
    win_1 = window.open ("booking_en.htm", "menu", properties + ",scrollbars=no,width=667,height=587");
}


function openwin_kontakt () {
    win_1 = window.open ("contact.htm", "menu", properties + ",scrollbars=no,width=467,height=550");
}



function openwin_book () {
    win_1 = window.open ("guest_book.htm", "menu", properties + ",scrollbars=no,width=450,height=530");
}



function openwin_newsletter () { 
    win_1 = window.open ("newsletter.htm", "menu", properties + ",scrollbars=no,width=450,height=180");
}