var deOpenDiv = "1";
function openDiv(num) {
   if (document.getElementById(num)) {
      if (document.getElementById(deOpenDiv)) {
         document.getElementById(deOpenDiv).style.display = "none";
      }
      document.getElementById(num).style.display = "block";

      if (document.getElementById("tabli_" + num)) {
         if (document.getElementById("tabli_" + deOpenDiv)) {
            document.getElementById("tabli_" + deOpenDiv).className = "";
         }
         document.getElementById("tabli_" + num).className = "selected";
      }
      deOpenDiv = num;
   }
}