function showImage(imgName) {
    document.getElementById('largeImg').src = imgName;
    showLargeImagePanel();
    unselectAll();
}

function showLargeImagePanel() {
    document.getElementById('largeImgPanel').style.visibility = 'visible';
}

function unselectAll() {
    if (document.selection) document.selection.empty();
    if (window.getSelection) window.getSelection().removeAllRanges();
}

function hideMe(obj) {
    obj.style.visibility = 'hidden';
}