function expandDiv(thaw) {
  if (document.getElementById("sub_"+thaw).style.display == "none") {
    document.getElementById("sub_"+thaw).style.display = "";
	//document.getElementById("sign_"+thaw).innerHTML = "[-]";
  } else {
    document.getElementById("sub_"+thaw).style.display = "none";
	//document.getElementById("sign_"+thaw).innerHTML = "[+]";
  }
}