Thanks for the help.
Would you make the bars background images?
I tried to get rid of the width, but it just gets rid of the bars all together.
I have found that the width:100%; seems to work fine if I take the <nav> and <erasers> divs out. It also seem to work if I just delete the contents of <nav> and <erasers>. Not sure why. Could it be that the positioning is interfering with something?