function moveprev(path) {

    last = document.getElementById('tot').value;

    url = imgmain.src;
    flen = url.indexOf('.jpg', 1) - url.indexOf('/a', 1) - 2;
    curr = url.substr(url.indexOf('.jpg', 1) - flen, flen);
    
    curr = parseInt(curr) - 1;

    if (curr == 0) {
        curr = last;
    }

    imgmain.src = path+'/a' + curr + '.jpg';
    imgmain.name = 'a' + curr;
}


function movenext(path) {

    last = document.getElementById('tot').value;

    url = imgmain.src;
    flen = url.indexOf('.jpg', 1) - url.indexOf('/a', 1) - 2;
    curr = url.substr(url.indexOf('.jpg', 1) - flen, flen);

    curr = parseInt(curr) + 1;

    if (curr > last) {
        curr = 1;
    }

    imgmain.src = path+'/a' + curr + '.jpg';
    imgmain.name = 'a' + curr;
}

function enlarge() {

    var pos = "left=" + ((screen.width / 2) - 300) + ",top=" + ((screen.height / 2) - 300);
    window.open("imgopup.php?pictype="+document.getElementById('pictype').value,"imageWindow","width=500,height=500,toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=no,"+pos);
}

function enlarge2() {
    var pos = "left=" + ((screen.width / 2) - 300) + ",top=" + ((screen.height / 2) - 300);
    window.open("handgal2.php", "imageWindow", "width=600,height=600,toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=no," + pos);
}