def InsertItemForXmlNodeBefore(self, parentItem, nextItem, xmlNode):
		previousItem = self.propertiesPane.tree.GetPrevSibling(nextItem)
		item = self.propertiesPane.tree.InsertItem(parentItem, previousItem, "")
		self.propertiesPane.InitItemForXmlNode(item, xmlNode, parentItem.level + 1)
		return item