function hideLevel(_levelId) {
	var thisLevel = document.getElementById(_levelId);
	thisLevel.style.display = "none";
}
function showLevel(_levelId) {
	var thisLevel = document.getElementById(_levelId);
	if (thisLevel.style.display == "none") {
		thisLevel.style.display = "";
	} else {
		hideLevel(_levelId);
	}
}
function hideCatAll() {
	if (clevel0.length > 1) {
		for (i = 0; i < clevel0.length; i++) {
			hideLevel(clevel0[i]);
		}
	}
}
function showCLevel(_levelId) {
	var thisLevel = document.getElementById(_levelId);	
//	if (thisLevel.style.display == "none") {
//		hideCatAll();
		thisLevel.style.display = "";
//	} else {
//		hideLevel(_levelId);
//	}
}