function show(n) { var cdesc; switch (n) { 
case 0.1: cdesc="Наведите курсор на отметку с <br>километражем для прочтения вопросов викторины."; break; 
 
case 200: cdesc="1.\n\n"; break; 
case 300: cdesc="4.\n\n"; break; 
case 600: cdesc="7.\n\n\n"; break; 
case 800: cdesc="10.\n\n"; break; 
case 1200: cdesc="13.\n\n\n"; break; 
case 1400: cdesc="16.\n\n\n\n"; break; 
case 2000: cdesc="19.\n"; break; 
case 2800: cdesc="22.\n\n\n"; break; 
case 3600: cdesc="25.\n\n"; break; 
case 4000: cdesc="28.\n\n"; break;
case 5000: cdesc="31.\n\n"; break; } 

desc.innerText=cdesc; }