This is becoming a frequent question and I have added links to help better understand Restless Leg Syndrome:
http://www.medicinenet.com/restless_leg_syndrome/article.htm
http://en.wikipedia.org/wiki/Restless_legs_syndrome
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=1785221
http://adam.about.com/reports/Restless-legs-syndrome-and-related-disorders.htm
~Bryan