private void findEqualSections(CRFVersion v1, CRFVersion v2){
		for (Entry<String,Section> e1 : v1.getSections().entrySet()){
			for (Entry<String,Section> e2: v2.getSections().entrySet()){
				Section s1 = e1.getValue();
				Section s2 = e2.getValue();
				if (s1.getProperties().equals(s2.getProperties())){
					this.equalSections.add(s2);
				}
			}
		}
		
		for (Section s1: v1.getSections().values()){
			if (!equalSections.contains(s1)){
				deletedSections.add(s1);
			}
		}
		for (Section s2 : v2.getSections().values()){
			if (!equalSections.contains(s2)){
				addedSections.add(s2);
			}
		}
	}