For gaps in your resume, you might want to consider using the following type of format.
From
http://www.susanireland.com/resumeguide/format.html
Functional Resume
The functional format presents your experience under skill headings, giving you the freedom to prioritize your accomplishments by impact rather than by chronology. In this format, your work history is listed very concisely in a section separate from your achievements. (See template for functional format.)
The functional format is most useful when:
You are changing careers.
You are reentering the job market.
You need to emphasize skills or experience from an early part of your work history.
Your volunteer experience is relevant and needs to be highlighted.
Your most recent position is not impressive.
Your job titles don't accurately reflect the level of responsibility you had.