var mess = new Array(
'Dress wamrly in windproof clothing to prevent hypothermia and frostbite',
'Avoid drinking alcoholic beverages in cold weather as they cause you to lose heat faster',
'Take extra blankets with you on long trips',
'Exercising in cold weather can be safe and beneficial',
'A balanced diet will help keep you warm and healthy in the winter ',
'Dress in layers so you can adapt to changing conditions. Wear a hat to prevent heat loss.');
var max = mess.length;
var num = Math.floor((Math.random() * max));
document.writeln(mess[num]);