jodd-lagarto/src/main/java/jodd/lagarto/dom/Node.java
public void insertBefore(final Node newChild, final Node refChild) {
		int siblingIndex = refChild.getSiblingIndex();
		refChild.parentNode.insertChild(newChild, siblingIndex);
	}
public void insertBefore(final Node newChild, final Node refChild) {
		int siblingIndex = refChild.getSiblingIndex();
		refChild.parentNode.insertChild(newChild, siblingIndex);
	}
Inserts node before provided node.