function webcamReload() {
    document.getElementById('webcam').src = "http://67.40.63.124/SnapshotJPEG?resolution=320x240&quality=clarity&interval=30&count=" + webcamCount++;
    setTimeout("webcamReload()", 30000);
}

function show_or_hide_refine_div(caller, div)
{
    target = document.getElementById(div)
    current_text = new String(caller.innerHTML)
    if (target.style.display == 'block')
    {
        target.style.display = 'none';
        caller.innerHTML = current_text.replace('-', '+');
    }
    else
    {
        target.style.display = 'block';
        caller.innerHTML = current_text.replace('+', '-');
    }
}