title: How to write the Flash actionscript to makes this mouse action?
body: <p>A bit hard for me to describe the effect I need.
  When I press the mouse and move it up,then release,it go to the next page.When I press the mouse and move it down,then release,it go to the previous page.
  It's like swap desktop in smartphone.
  I am not so familiar with Flash actionscript.
  I have an idea to achieved this effect, which is when I press the mouse(MOUSE_DOWN), the Y-position of mouse was detected,and when I release the mouse(MOUSE_UP),another Y-position detected.
  When the old Y > new Y , go to prevFrame(), and when the new Y > old Y, go to nextFrame().
  Can anyone help me to write it with actionscript?I try but failed, cause I really can't understand the script...</p>