// this file is copyright - Mike Capstick   
// it adds the quiz questions and answers 
// load  arrays with a set of questions and  answers 
questions=new Array();
 questions[1] ='Ergonomics is the study of the relationship between: ~management and staff~the worker and the workplace~health and profits~people~B';
 questions[2] ='Having a computer seat too high can:~cause back pain~bring the user too close to the screen~exert pressure on the legs~cause altitude sickness~C';
 questions[3] ='The top of the screen should be: ~no higher than eye level~above eye level~below eye level~touch your head~A';
 questions[4] ='For most people, the best viewing distance is about:~45 cm from the screen~25 cm from the screen~60 cm from the screen~over a metre~C';
 questions[5] ='It is easier  to read the screen if  the screen is:~straight~tilted back, 5 to 10 degrees~tilted forward, 5 to 10 degrees~switched off~B';
 questions[6] ='If you are right handed, your keyboard should be: ~offset to the right~directly in front of you~offset to the left~on your knee~B';
 questions[7] ='The height of the keyboard should be:~elbow height~below elbow height~desk height~about 1 cm~A';
 questions[8] ='The lighting in your work area should be:~very bright~focused on the screen~slightly dimmer than usual~slightly dimmer than you~C';
 questions[9] ='Reflected glare can be caused by: ~shadows on the screen~overhead lights and sunlight~a faulty picture tube~smoking~B';
 questions[10] ='Noise in the work area:~can cause fatigue~is easily ignored~helps the operator to concentrate~better than music~A';
 questions[11] ='You can reduce tension by:~varying tasks throughout your workday~increasing the amount of light~sitting at your terminal without moving~thinking about your mother-in-law~A';
 questions[12] ='Movement within your peripheral vision:~can cause visual distraction~is easy to ignore~should be limited~requires blinkers~A';
 questions[13] ='Most people should have their eyes examined:~every two years~every three years~only when eye strain occurs~by a podiatrist~A';
 questions[14] ='If you wear bifocal lenses, you: ~should tilt your head back to see the screen~never need special correction for screen work~may need different lenses  for screen work~extremely lucky~C';