The top toolbar (default position) is called the Standard toolbar. The Standard toolbar is consistent across the OpenOffice.org applications.
The second toolbar across the top (default location) is the Formatting toolbar. It is a context-sensitive bar that shows the relevant tools in response to the cursor’s current position or selection. For example, when the cursor is on a graphic, the Formatting bar provides tools for formatting graphics; when the cursor is in text, the tools are for formatting text.