function toggleFingerprints() {
    var formSelect=document.forms[0].elements[0];
    var type=formSelect.selectedIndex;
    var idx=document.URL.indexOf("php?");
    if (idx==-1) {
        window.open(document.URL+"?fp_type="+type, "_self");
    } else {
        window.open(document.URL.substring(0,idx)+"php?fp_type="+type, "_self");
    }
}

function setFingerprintsType() {
    var idx=document.URL.indexOf("?");
    var type=0;
    if (idx != -1) {
        var typeStr=document.URL.substring(idx+1, document.URL.length);
        idx=typeStr.indexOf("=");
        if (idx != -1) {
            var ch=typeStr.substring(idx+1, idx+2)
            switch (ch) {
                case '1':
                    type=1;
                    break;
                case '2':
                    type=2;
                    break;
            }
        }
    }
    var formSelect=document.forms[0].elements[0];
    formSelect.selectedIndex=type;
}