function gal(pw)
    {
    if(pw.toLowerCase()=='vechta'){
        window.open('XIV_ISAH_CONGRESS_2009/index.html', "_blank", "width=1040,height=700,scrollbars=yes");
        _blank.focus();
        }
    else {
        alert('Password does not fit.');
        }
    }
function galry()
    {
    pw = prompt('Please insert the password','')
    if(pw.toLowerCase()=='vechta'){
        window.open('XIV_ISAH_CONGRESS_2009/index.html', "_blank", "width=1040,height=700,scrollbars=yes");
        }
    else {
        window.location.href = "evalBilder.html";
        }
    }