Shorten the slider, at maxvalue doesn't cover the text

Old: 
![20130911142034](https://f.cloud.github.com/assets/5334688/1121527/97e04444-1ac3-11e3-98a6-13dafc5e745f.jpg)
New:
![20130911170928](https://f.cloud.github.com/assets/5334688/1121528/9db92700-1ac3-11e3-8388-14e1343750e5.jpg)