jodd-lagarto/src/main/java/jodd/lagarto/dom/Node.java
public void insertBefore(final Node[] newChilds, final Node refChild) {
		if (newChilds.length == 0) {
			return;
		}
		int siblingIndex = refChild.getSiblingIndex();
		refChild.parentNode.insertChild(newChilds, siblingIndex);
	}
public void insertBefore(final Node[] newChilds, final Node refChild) {
		if (newChilds.length == 0) {
			return;
		}
		int siblingIndex = refChild.getSiblingIndex();
		refChild.parentNode.insertChild(newChilds, siblingIndex);
	}
Inserts several child nodes before provided node.