made web ui nicer/cleaner

couldn't find any test for the web ui. looks ok cross browsers (incl ie6 'cept the blank image box)

before:
https://lh3.googleusercontent.com/-Jb99KAGvzNE/Tp8DxEezeeI/AAAAAAAAAZQ/qcN2MnkZXqM/s800/old.png

after:
https://lh5.googleusercontent.com/-wdxQ5ycPA08/Tp8DwvkHoSI/AAAAAAAAAZM/lQ8ROYsXrK0/s800/new.png