Your laptop's display (being an LCD) only supports 60hz. There's no point rendering at a higher framerate, because your display can't show the images any faster.
Now would also be a good time for the old "LCDs don't flicker like CRTs and 60hz is high enough because your eye can't tell the difference between 60hz and 600hz" lecture, but since your LCD won't render at above 60hz, it doesn't really matter.
That said, if you really want to increase it to GoldSrc's limit, add "max_fps 100" to your CS config.
Of course, your display will still only display 60fps, it's just that your graphics card will render an extra 40 frames per second and throw them away.
So again, no point going above 60 because your graphics card is just going to throw them away.
EDIT: If you have your laptop hooked up to a CRT with a refresh rate higher than 60hz, then increasing the max_fps *DOES* have a benefit. So only bother doing this if you're using a CRT monitor with a refresh rate higher than 60hz.