function toggleBoxes(txt) {
       var eto = document.getElementById("erillinentoimitusosoite");
       var tit = document.getElementById("tilausilmantunnusta");
       var tt = document.getElementById("tilaustunnuksella");
       var beto = document.getElementById("boxeto");
       var btit = document.getElementById("boxtit");
      
       if (txt) {
         if (txt == "tilausilmantunnusta") {
           if (tit == null) {
             return;
           }       
         
           if (btit.checked) {
             tit.style.display = "block";
             tt.style.display = "none";
           } else {
             tit.style.display = "none";
             tt.style.display = "block";
           }
         } else if (txt == "erillinentoimitusosoite") {
  
           if (eto == null) {
             return;
           }       
  
           if (beto.checked) {
             eto.style.display = "block";
           } else {
             eto.style.display = "none";
           }
         }
         
       } else { // onload 
         
         if (btit != null && btit.checked) {
         
           tit.style.display = "block";
           tt.style.display = "none";

           if (beto.checked) {
             eto.style.display = "block";
           } else {
             eto.style.display = "none";
           }

         } else {
         
           if (beto.checked) {
             eto.style.display = "block";
           } else {
             eto.style.display = "none";
           }
           
           tit.style.display = "none";
           tt.style.display = "block";
         }

       }      
     }    
      
      function loadCheck() {
        var viewed = false;
        var a = document.getElementById("aihe1");
        var b = document.getElementById("aihe2");
        
        if (a.checked) {
          viewed = a.value;
        } else if (b.checked) {
          viewed = b.value;
        }
        
        if (viewed) {
          toggleBoxes(viewed);
        }
      }