function avaa_ikkuna(osoite)
{
laskinikkuna = window.open(osoite, "laskinikk", "width=560, height=650, left=150, top=70, scrollbars=1, resizable=1")
laskinikkuna.focus();
}
function aukaise_ikkuna(addr)
{
palauteikkuna = window.open(addr, "palauteikk", "width=760, height=650, left=150, top=70, scrollbars=1, resizable=1")
palauteikkuna.focus();
}