var rotate = true;
nowpage = 0;
nextrotate = 1;

function getpage(pg) {
  rotate = false;
  showhide(pg,nowpage);
  nowpage = pg;
//  alert('nowpage: '+nowpage);
}

function showhide(npg, prev) {
//  alert('npg: '+npg+', prev: '+prev);
  if (!prev)
    prev = 1;
  document.getElementById('page'+prev).style.display = 'none';
  document.getElementById('pg'+prev).className = '';
  document.getElementById('page'+npg).style.display = 'block';
  document.getElementById('pg'+npg).className = 'selected';
  nowpage = npg;
}

function rotatefunc(){
         if (nowpage == 0)
         {
           nowpage = 1;
         }
         else
         {
           if (nowpage < 5)
             nextrotate++;
           else
             nextrotate = 1;
         }
         if (rotate)
         {
           if (nextrotate != nowpage)
             showhide(nextrotate,nowpage);
           setTimeout ("rotatefunc()", 4000);
         }
}