function cosmos() {
  hj_core = document.getElementById("hj_corearea");
  hj_img = document.getElementById("hj_imgarea");
  hj_core.style.display = "none";
  hj_img.style.display = "block";
  hj_timerID = setTimeout("cosmos_clr()",5000);
}

function cosmos_clr() {
  hj_core.style.display = "block";
  hj_img.style.display = "none";
  clearTimeout(hj_timerID);
}

function cosmos_win() {
  window.open("cosmos.html","","width=1000,scrollbars=1,resizable=1");
}