function openCat(catId, imgId)
{
	catToOpen = document.getElementById(catId);
	imgToChange = document.getElementById(imgId);
	if (!catToOpen.isVis)
		{
		catToOpen.isVis = true;
		catToOpen.className = "resourceOpen";
		imgToChange.style.backgroundImage = "url(media/images/resourceMinus.jpg)"
		}
	else
		{
		catToOpen.isVis = false;
		catToOpen.className = "resourceClose";
		imgToChange.style.backgroundImage = "url(media/images/resourcePlus.jpg)"
		}
}
function closeFile()
{
	newFile = document.getElementById("file1");
	newFile.disabled = true;
}
function openFile()
{
	newFile = document.getElementById("file1");
	newFile.disabled = false;
}
function catField()
{
	createCat = document.getElementById("newCat");
	if (createCat.isOpen)
		{
		createCat.disabled = true;
		createCat.isOpen = false;
		oldCats = document.getElementById("oldCats");
		oldCats.disabled = false;
		oldCats.focus()
		}
	else
		{
		createCat.disabled = false;
		createCat.isOpen = true;
		oldCats = document.getElementById("oldCats");
		oldCats.disabled = true;
		createCat.focus();
		}
}