function ToggleCategory(link) {
    var cat = link.parentNode;
    var items = cat.getElementsByTagName("table")[0];
    if (!items) {
        return;
    }
    
    if (items.style.display == "") {
        items.style.display = 'none';
    }
    
    if (items.style.display == 'none') {
        items.style.display = 'block';
        link.className = 'open';
    } else {
        items.style.display = 'none';
        link.className = '';
    }
}

function swapImage(imgName,swapSrc) {
	document.images[imgName].src = swapSrc;
}

var imageOver = "";
function swapImage2(Image) {
	imageOver = Image.src;
	var path = Image.src.split(".");
	path[path.length-2] += "_over";
	Image.src = path.join(".");
}

function restoreImage(Image) {
    Image.src = imageOver;
}