function camp() {
var num = Math.floor(Math.random () * 4);
switch (num){
case 1:
document.write("
");
break;
case 2:
document.write("
");
break;
case 3:
document.write("
");
break;
case 4:
document.write("
");
break;
default:
document.write("");
break;
}
}
