// load  arrays with a set of questions and  answers 
title='Brain Facts';
questions=new Array();
questions[1] ='A neuron can perform ...... calculations per second.~200 ~1~50~100~A~.';
questions[2] ='Scientists call your brain cells~neurons.~neutrons.~stem cells.~electrons.~A~.';
questions[3] ='The nerve fibres that connect together your brain cells are called~dendrites.~veins.~canals.~arteries.~A~.';
questions[4] ='When you were first born your brain had~100 billion neurons.~5 million neurons.~15 million neurons.~25 billion neurons.~A~.';
questions[5] ='Scientists often call the brain your ~neural net.~cerebral cortex.~neurological junction.~neuron synapses.~A~.';
questions[6] ='The best way to grow your brain is to ~stimulate it.~watch television.~have a nap.~follow a regular routine.~A~.';