powerful scrollbar buttons

i think the scrollbars are really worth to rethink them
the arrow-buttons are quite primitive and annoying actually

i think two mighty buttons could replace them totally and would give a nicer scrolling in every app

the first button is just like the 'hand-tool' of many other programs
you drag it and it shifts the 'page' up or down or left or right just as you move the mouse

the secound button is for 'accelated scrolling'
when you drag it, it scrolls continuous in the direction

with these two things you can choose between high precision and high speed scrolling
both buttons are freezing the mouse-cursor on its position until they are pressed

there could be various keyboard-combos, with [shift] it could just scroll horizontally xor vertically, for example

maybe the old buttons should be also on by default, so newbies are not forced to use the new ones

sorry for this childish 'screenshot', i like childish stuff ;)