function toggle(parentId, childId) {



	var parent = document.getElementById(parentId);
	
	
	
	var child = document.getElementById(childId);
	
	if (child != null) {
	
		var displayProperty = child.style.display;
	
		if (displayProperty == "" || displayProperty == "none") {
			child.style.display = "block";
	
	
		}
	
		if (displayProperty == "block") {
			child.style.display = "none";
		}
	
		if (parent != null) {
	
			if (child.style.display == "block") {
				parent.title = "Collapse";
			}
	
			if (child.style.display == "none") {
				parent.title = "Expand";
			}
	
		}
	
	}
	
	
	
}

function hideItem(id) {
	var item = document.getElementById(id);
	
	if (id != null) {
		item.style.display = "none";
	}

}

function displayItem(id) {
	var item = document.getElementById(id);
	
	if (id != null) {
		item.style.display = "block";
	}
}