all the methiods listed in the artical of disabling the right mouse click are easily defeated.

1. right click and leave the mouse button down
2. when the pop up window comes up hit the spacebar. that will close the pop up window
3. relase the right mouse button and you have your menu.

the last of the two examples (the one that tries to give a fake menu) is a little differant, you have hit tab and then the space bar (to select cancel to the copyright question)
but still works.

websites that try to disable the functionalilty of browsers are just annoying. none of them are effective.
there is always a way around.