@MethodInformation(author="Wolfgang", date="07.12.2012", description="deletes element from Set")
	public boolean delete(Object element) {
		Node p = head;
		Node prev = head;
						
		while(p != null) {
			if(p.getElement() == element) {
				
				if(p == head)
					head = p.getNextNode();
				
				if(p == tail)
					tail = prev;
				
				return true;
			}
				
			prev = p;
			p = p.getNextNode();;
		}
		
		return false;
	}