function getFullID(partialID, tagType) {
	var partialIDLength = partialID.length;
	var elements = document.getElementsByTagName(tagType);
	for (i = 0; i < elements.length; i++)
	{
		if (elements[i].id.length >= partialIDLength)
		{
			var start = elements[i].id.length - partialIDLength;
			if (elements[i].id.substr(start, partialIDLength) == partialID)
			{
				var fullID = elements[i];
				return fullID;
			}
		}
	}
}